Health
‘Fountain of youth’ molecule could promote healthy aging and slow diseases
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A small molecule has been hailed as potentially promoting longevity and combating certain diseases — but experts are also calling for more research.
NAD+ (Nicotinamide adenine dinucleotide) — often nicknamed the “fountain of youth” — is a coenzyme that is essential for cellular survival, which naturally declines with age. In recent years, supplements designed to boost NAD+ levels have grown in popularity.
Last month, researchers led by the University of Oslo reviewed preclinical and clinical studies investigating the link between NAD+ and aging.
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The review, which was published in the journal Nature Aging, concluded that restoring NAD+ levels could help to promote healthy aging and potentially slow or treat neurodegenerative diseases.
Every cell in the body contains NAD+, which plays a “critical role” in body functions that are essential to survival.
NAD+, a small molecule, has been hailed as potentially promoting longevity and combating certain diseases. (iStock)
Previous research has shown that patients with Alzheimer’s disease exhibit “notably low levels” of NAD+, the researchers noted — which aligns with the fact that NAD+ declines with age.
“NAD+ may hold the key to healthier aging and could protect us against diseases like Alzheimer’s disease and Parkinson’s disease,” said Evandro Fei Fang-Stavem, an associate professor at the University of Oslo, in a press release. “However, we need further research on how to effectively utilize NAD+ in patient treatment.”
Benefits of NAD+
Research has shown that boosting NAD+ can improve mitochondrial and stem cell function, improve energy metabolism, enhance focus and mood, and support tissue repair, according to Dr. Amanda Kahn, a board-certified internist and longevity expert in New York City.
“From a longevity standpoint, NAD+ is one of the most central molecules in maintaining youthful cellular function,” she told Fox News Digital. “It activates … longevity pathways that protect against DNA damage and inflammation.”
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Boosting NAD+ also supports neuroprotection from Alzheimer’s and Parkinson’s, enhances insulin sensitivity, reduces inflammation, repairs skin, boosts immune defense and improves symptoms in long COVID patients, Kahn added.
While NAD+ itself is a large molecule that can’t cross into cells, NAD+ “precursors” can enter cells and then work to create NAD+. (iStock)
Dr. Halland Chen, a double board-certified physician in New York who specializes in longevity, reiterated that studies in both animals and early human models show that maintaining healthy NAD+ levels can improve energy metabolism, cognitive function and overall vitality.
“Restoring NAD+ is ultimately about cellular repair and mitochondrial optimization, not just an energy boost,” he told Fox News Digital. “Clinical experience shows that NAD+ therapy enhances energy, focus and endurance, while supporting detoxification and reducing oxidative stress from daily life, travel or poor sleep.”
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NAD+ also activates sirtuins, a group of longevity-related proteins that regulate DNA repair, cellular stress responses and gene expression, Chen said, although he noted that larger human studies are still needed.
Methods of boosting NAD+
In clinical studies, patients with age-related diseases have taken compounds designed to boost NAD+.
While NAD+ itself is a large molecule that can’t cross into cells, NAD+ “precursors” can enter cells and then work to create NAD+, experts confirm.
These precursors include nicotinamide riboside (NR) and nicotinamide mononucleotide (NMN). Most people take these NAD+ precursors in the form of pills, capsules or powders.
“Clinical experience shows that NAD+ therapy enhances energy, focus and endurance while supporting detoxification.”
“Oral NAD precursors can modestly raise NAD+ levels and are convenient for daily maintenance,” Khan said. “In contrast, injections or IV infusions bypass the gut and deliver NAD+ directly into circulation, leading to more rapid and noticeable effects on energy, focus and recovery.”
Khan also prescribes a weaker NAD+ nasal spray for patients who can’t tolerate needles, though she said the benefits are typically less pronounced.
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“In general, I find that combining daily oral precursors with weekly NAD+ injections offers the most comprehensive support for both intracellular and extracellular NAD stores,” she advised.
Chen noted that oral supplements are best for maintenance, while IV therapy is often chosen for a “rapid cellular reboot, post-travel recovery or enhanced performance.”
“Sessions typically last two to four hours and are administered as a series of three infusions within seven to 10 days, followed by monthly maintenance.”
A doctor noted that oral supplements are best for maintenance, while IV therapy is often chosen for a “rapid cellular reboot, post-travel recovery or enhanced performance.” (iStock)
NAD+ therapy tends to have the most benefit for those managing fatigue, metabolic dysfunction or neurological decline, as well as anyone seeking to enhance energy, focus and recovery, Chen said.
“In healthy adults, benefits are typically modest, but can be amplified when combined with optimized nutrition, exercise and sleep,” he added.
Risks and caveats
While NAD+ therapy is generally safe and well-tolerated, it can cause some mild side effects, according to Chen.
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“Headache, nausea or chest tightness can occur, especially during faster IV infusions, and typically resolve when the rate is slowed,” Chen, who is also chief medical innovation officer at the digital wellness platform Eden, told Fox News Digital.
“Injections or IV infusions bypass the gut and deliver NAD+ directly into circulation, leading to more rapid and noticeable effects on energy, focus and recovery,” a doctor said. (iStock)
“Most reactions are transient and self-limited, and therapy is considered safe under medical supervision,” the doctor added.
He advises caution for people with active liver or kidney disease, those with a personal or family history of cancer, and women who are pregnant or breastfeeding.
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Kahn noted that common side effects include mild redness, itching or tenderness at the injection site, “which is harmless and dissipates quickly.”
“Some patients notice a transient rush, lasting no more than 10 minutes, after taking an NAD+ injection due to a brief release of adrenaline and mitochondrial ATP,” she went on. “While not dangerous, it can feel uncomfortable if not anticipated.”
“If the core pillars — sleep, movement, nutrition, metabolic balance and stress regulation — are not in place, NAD+ therapy won’t deliver its full potential.”
When choosing a NAD+ product, quality matters more than quantity, according to multiple experts.
“Patients should look for clinically validated, third-party-tested formulations and start with lower doses to gauge tolerance,” Chen said.
NAD+ therapy isn’t a shortcut to health and longevity in and of itself, but one layer of a much larger foundation, according to the expert.
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“If the core pillars — sleep, movement, nutrition, metabolic balance and stress regulation — are not in place, NAD+ therapy won’t deliver its full potential,” he said. “It’s like pouring premium fuel into an engine that hasn’t been maintained — the energy source is there, but the system isn’t optimized to use it.”
NAD+ therapy isn’t a shortcut to health and longevity in and of itself, but one layer of a much larger foundation, according to experts. (iStock)
It’s important to speak with a doctor before starting a NAD+ regimen, experts agree.
“Your doctor needs to know about all supplements you plan to take, including NAD+, because it has strong biological effects,” Chen said. “Your doctor will evaluate your personal health risks and check your medications for potential interactions with NAD+ supplements.”
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Khan noted that because NAD+ interacts with metabolic and cellular pathways, dosing and timing should be individualized — “especially for those with cancer history, metabolic conditions or multiple medications.”
“A physician should help determine the appropriate delivery method, duration and monitor for response and tolerance,” she said.
Health
Brain Health Challenge: Try the MIND Diet
Welcome to Day 2 of the Brain Health Challenge. Today, we’re talking about food.
Your brain is an energy hog. Despite comprising about 2 percent of the average person’s body mass, it consumes roughly 20 percent of the body’s energy. In other words, what you use to fuel yourself matters for brain health.
So what foods are best for your brain?
In a nine-year study of nearly 1,000 older adults, researchers at Rush University in Chicago found that people who ate more of nine particular types of food — berries, leafy greens, other vegetables, whole grains, beans, nuts, fish, poultry and olive oil — and who ate less red meat, butter and margarine, cheese, sweet treats and fried food had slower cognitive decline.
Based on these findings, the researchers developed the MIND diet.
Large studies encompassing thousands of people have since shown that following the MIND diet corresponds with better cognitive functioning, a lower risk of dementia and slower disease progression in people with Alzheimer’s. People benefit from the diet regardless of whether they start it in midlife or late life.
Experts think the foods included in the MIND diet are especially good for the brain because they contain certain macro and micronutrients.
Berries and leafy greens, for example, are rich in polyphenols and other antioxidants, said Jennifer Ventrelle, a dietitian at Rush and a co-author of “The Official Mind Diet.” Many of these compounds can cross the blood-brain barrier and help to fight inflammation and oxidative stress, both of which can damage cells and are linked to dementia.
Nuts and fatty fishes, like salmon and sardines, contain omega-3 fatty acids, which are important for building the insulating sheaths that surround the nerve fibers that carry information from one brain cell to another.
Whole grains and beans both contain a hefty dose of fiber, which feeds the good microbes in the gut. Those microbes produce byproducts called short-chain fatty acids that experts think can influence brain health via the gut-brain axis.
You don’t have to revamp your whole diet to get these nutrients. Instead, think about “MIND-ifying” whatever you already tend to eat, said Dr. Joel Salinas, a neurologist at NYU Langone Health and the founder and chief medical officer of the telehealth platform Isaac Health. For instance, add a handful of nuts or berries to your breakfast.
Today’s activity will help you MIND-ify your own meals. Share your choices with your accountability partner and in the comments, and I’ll discuss the ways I’m adjusting my diet, too. For added inspiration, check out these MIND-approved recipes from New York Times Cooking.
Health
Measles outbreak explodes in South Carolina; multiple people hospitalized as cases surpass 200
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The South Carolina Department of Public Health (DPH) is sounding the alarm after 26 new measles cases were reported since Friday, bringing the total number of cases in the state’s latest outbreak to 211.
DPH first reported a measles outbreak Oct. 2 in the Upstate region. As of Tuesday, 144 people are in quarantine and seven people are in isolation.
Of the 211 cases, 45 involve children under 5, 143 cases involve children ages 5 to 17, 17 cases involve adults and six cases involve minors whose ages weren’t disclosed.
DPH said 196 of the 211 infected individuals were unvaccinated, four were partially vaccinated, one was vaccinated and 10 are either still being investigated or have an unknown vaccination status.
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Hundreds of people in South Carolina have contracted the measles, and a few have been hospitalized. (Jan Sonnenmair/Getty Images)
Officials said 19 of the new cases were associated with “exposures in known households and previously reported school exposures,” and four resulted from church exposures.
DPH identified public exposures at Sugar Ridge Elementary and Boiling Springs Elementary and began notifying potentially exposed students, faculty and staff Dec. 31.
There are nine students in quarantine from the two schools.
Of the 211 cases, 45 involve children under 5 years old. (iStock)
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Exposures also happened at the Tabernacle of Salvation Church, Unitarian Universalist Church of Spartanburg, Slavic Pentecostal Church of Spartanburg and Ark of Salvation Church.
The source of one case is unknown, while two others are still being investigated.
Although complications from measles are not reportable, officials said four people, including adults and children, required hospitalization for complications from the disease.
Officials recommend all children be vaccinated against measles. (Raquel Natalicchio/Houston Chronicle via Getty Images)
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Additional cases required medical care, but the infected individuals were not hospitalized.
Those infected with measles are contagious from four days before the rash appears and may be unaware they can spread measles before they know they have the disease, according to DPH.
DPH said it is important for those with a mild illness or those who are in quarantine to stay home to protect others.
“We encourage employers to support workers in following DPH recommendations to stay out of work while ill or in quarantine, which also protects businesses, other workers and clients,” officials wrote in a statement.
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DPH said vaccinations continue to be the best way to prevent measles and stop the outbreak.
Though the CDC recently released new vaccine recommendations under Health and Human Services Secretary Robert F. Kennedy Jr., its guidelines still dictate all children should be immunized for measles, mumps, rubella, polio, pertussis, tetanus, diphtheria, Haemophilus influenzae type B (Hib), pneumococcal disease, human papillomavirus (HPV) and chickenpox.
Health
Common pain relievers may raise heart disease and stroke risk, doctors warn
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Many might assume that over-the-counter (OTC) medications are generally safer than stronger prescription drugs, but research shows they can still present risks for some.
Certain common OTC painkillers have been linked to an increased risk of high blood pressure, stroke and heart attacks.
Potential risk of NSAIDs
Non-steroidal anti-inflammatory drugs (NSAIDs) — which are used to reduce pain, fever and inflammation — have been pinpointed as the class of medicines most linked to elevated cardiovascular risk.
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“This is because they reduce the production of certain chemicals called prostaglandins,” Maryam Jowza, M.D., an anesthesiologist at UNC Health in North Carolina, told Fox News Digital. “These chemicals are involved in inflammation, but they are also involved in other body functions, such as influencing the tone of blood vessels.”
Certain common OTC painkillers have been linked to an increased risk of high blood pressure, stroke and heart attacks. (iStock)
Dr. Marc Siegel, Fox News senior medical analyst, echoed the potential risk of NSAIDs.
“They can lead to high blood pressure, heart attack and stroke via fluid retention and salt retention,” he told Fox News Digital. “This increases volume, puts a strain on the heart and raises blood pressure.”
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Common examples of NSAIDs include ibuprofen, naproxen, aspirin, diclofenac, indomethacin and celecoxib.
Randomized trials found that ibuprofen caused the biggest spikes in blood pressure, followed by naproxen and then celecoxib.
“In general, the increase in blood pressure is more likely with higher doses and longer duration of treatment,” said Jowza, who is also an associate professor in the Department of Anesthesiology at the UNC School of Medicine.
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NSAIDs can also increase stroke risk, especially at high doses and with long-term use, the doctor added.
Diclofenac was linked to the highest cardiovascular risk, the doctor cautioned. Ibuprofen can also raise blood pressure and has been associated with a higher heart attack and stroke risk, but not as high as diclofenac. Naproxen carries a lower cardiovascular risk than ibuprofen or diclofenac, but is not entirely risk-free.
NSAIDs have been pinpointed as the class of medicines most linked to elevated cardiovascular risk. (iStock)
“The practical takeaway is that diclofenac is generally the least favorable choice in patients with elevated cardiovascular risk, and all NSAIDs should be used at the lowest effective dose for the shortest duration,” Dr. Nayan Patel, pharmacist and founder of Auro Wellness in Southern California, told Fox News Digital.
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Aspirin is an exception — although it is an NSAID, it actually reduces the risk of clots when taken at a low dose for prevention, under a doctor’s guidance. However, it can increase bleeding risk and blood pressure at high doses.
Non-NSAIDs safer, but not risk-free
Non-NSAID pain relievers are commonly used for everyday aches, headaches and fever, but not swelling. They act mainly on the brain’s pain signals, not inflammation, according to medical experts.
Acetaminophen, the most common non-NSAID pain reliever, is also linked to an increase in blood pressure, although to a lesser extent, according to Jowza.
“All NSAIDs should be used at the lowest effective dose for the shortest duration.”
“Acetaminophen was once thought to have little to no cardiovascular effects, but more recent evidence suggests it can increase blood pressure, especially with higher doses used in the long term,” she said, emphasizing the importance of blood pressure monitoring. “Its effect on stroke risk is less clear.”
Which groups are most vulnerable?
The groups at greatest risk, according to doctors, are those with existing health conditions, such as high blood pressure, prior stroke or heart disease, diabetes or kidney problems.
“These groups are also more likely to experience NSAID-related fluid retention and destabilization of blood pressure control,” Patel said.
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Cardiovascular risk is generally higher for people 75 and older, the doctors agreed.
“Age amplifies risk largely because baseline cardiovascular risk increases with age, and kidney function reserve tends to decline,” Patel said. “Older adults are also more likely to be on antihypertensives, diuretics, antiplatelets or anticoagulants, so NSAIDs can destabilize blood pressure control and add safety complexity.”
Warning signs
Anyone experiencing chest pain, shortness of breath, sudden weakness or numbness, severe headache, confusion, slurred speech or vision changes should see a doctor immediately, Jowza advised.
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“These symptoms can point to a heart attack or stroke,” she warned. “Other symptoms of concern that may not develop as rapidly, like new swelling in the legs, should also prompt medical attention.”
Anyone experiencing chest pain, shortness of breath, sudden weakness or numbness, severe headache, confusion, slurred speech or vision changes should see a doctor immediately, a doctor advised. (iStock)
“Patients should also seek medical advice if they notice signs of fluid retention or kidney stress, such as rapidly rising blood pressure, swelling in the legs, sudden weight gain over a few days, reduced urine output or worsening shortness of breath,” Patel added.
Safer alternatives
For those at higher risk, Patel recommends non-NSAID approaches whenever possible.
“For many patients, this means starting with non-drug strategies such as heat or ice, physical therapy and activity modification,” he told Fox News Digital. “If medication is needed, acetaminophen is generally preferred over oral NSAIDs from a cardiovascular standpoint, although regular use should still be monitored in people with hypertension.”
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For localized joint or muscle pain, the doctor said topical NSAIDs can offer “meaningful relief” with “far lower” risk.
“Overall, pain management in high-risk patients should emphasize targeted therapy, conservative dosing and close blood pressure monitoring.”
Bottom line
The doctors emphasized that the overall risk is “very low” for people taking OTC pain relievers on a short-term basis, but it rises with long-term, high-dose use.
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“I would not hesitate to use an occasional dose if it were a low-risk individual with no prior history of heart attack or stroke,” Jowza said. “I also think short-term use in diabetics and hypertensives who are well-controlled is acceptable.”
Although aspirin is an NSAID, it actually reduces the risk of clots when taken at a low dose for prevention, under a doctor’s guidance. (iStock)
For those taking NSAIDs, the doctor suggested using “guard rails” — such as regularly testing blood pressure and kidney function, and setting limits on dosing — to make treatment as safe as possible.
Patel agreed that for most healthy individuals, occasional NSAID use “does not carry a meaningful cardiovascular risk.”
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“The concern is primarily with repeated or chronic use, higher doses, and use in people with underlying cardiovascular, kidney or blood pressure conditions,” he confirmed to Fox News Digital.
“That said, large population studies show that cardiovascular events can occur early after starting NSAIDs, particularly at higher doses, which is why even short-term use should be approached cautiously in higher-risk patients.”
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