Fitness
How Exercise Really Affects Your Testosterone, According to Doctors
Working out regularly has a profound effect on all aspects of your health, including your heart and mental health. Exercise may also play a role in your testosterone levels—but exactly how it does that is a little complex.
‘Testosterone levels are affected by exercise but ongoing work is needed to really understand what is happening,’ says Edward Cherullo, M.D., chair of urology at Rush University Medical Center in Chicago.
What we do know so far is that the relationship between exercise and testosterone depends on several factors. One is the type of workout you choose, says Brian McNeil, M.D., chief of urology at SUNY Downstate Health Sciences University. Over time, strength and resistance training have been shown to increase testosterone levels while cardio might not have as much of an effect.
It also depends on how intensely you’re working out and for how long, explains Anthony Hackney, Ph.D., D.Sc., a professor of exercise physiology and nutrition at the University of North Carolina, who’s studied exercise and testosterone for decades.
Testosterone, the main male sex hormone that’s produced by the testicles, is anabolic and does help you build muscle, Hackney says. (That’s one of its functions, anyway; it has many others.) But other hormones also contribute to muscle building and endurance.
‘While testosterone is important, it’s not the only way the body decides to create an anabolic response,’ Hackney adds.
Exercise affects testosterone in other ways, too, Dr. McNeil adds. When you work out, you’ll improve your overall health and reduce your body fat, which he says can improve testosterone. Obesity is linked to low testosterone and other health problems.
‘All of these things put you in the best shape possible,’ he says. Here’s a closer look at how exercise affects your T levels.
Does Working Out Affect Testosterone Levels?
Exercise does impact testosterone levels, but research suggests that the actual effect depends on several factors.
‘Certain types of exercise done at certain volumes and intensity can lead to an elevation in testosterone, but you can also have certain types of exercise, certain volumes of intensity that can reduce testosterone,’ Hackney says. ‘So, there isn’t a universal, ‘Oh, I’m exercising, and I’m always going to see this testosterone response.”
Many studies looking at different types of exercises—including cardio, cycling, running, swimming, and weightlifting—and their effects on T levels have found different outcomes, explains Ahmed El-Zawahry, M.D., a urologist at the University of Toledo Medical Center.
‘If we are going to summarise the results of these studies in one easy statement, exercises do not significantly change testosterone level,’ he says.
Still, some exercises, especially weightlifting, can temporarily boost testosterone. But, Dr. El-Zawahry says the surge doesn’t last long.
Body composition and fitness level factor into how exercise affects your testosterone, too. A small 2016 study found that obese and overweight men saw a boost in their T levels when they increased their physical activity, more so than when they solely restricted calories.
A 2018 study suggested that some male elite athletes had low testosterone concentrations, but the low T may be linked to higher cortisol levels in the blood from working out. The athletes studied are typically in good physical condition, with a lean body and no symptoms of low testosterone (which doctors say is often more important than your actual levels).
People with higher percentages of body fat and higher body weights are more likely to have low testosterone and experience symptoms, Dr. El-Zawahry adds.
‘You should exercise to keep your endurance, lean muscle, and low body fat, which will, in turn, keep you healthy,’ Dr. El-Zawahry says. This will reduce the risks of metabolic syndrome and reduce health issues associated with it—and those things keep testosterone at a healthy level, he adds.
Which Exercises Impact Testosterone Most?
Research suggests that strength exercises and high-intensity interval training (HIIT) can increase testosterone levels. Endurance-based exercises, like cardio, can potentially reduce testosterone.
Even within resistance training, the ‘greater intensity and greater volume of work’ are more likely to elevate testosterone, Hackney says. For instance, if you’re lifting heavy weights with lots of sets over a 45-minute time period, you’ll see a bigger impact.
‘If they’re a casual resistance trainer, they’re probably not going to see any substantial mark in testosterone changes,’ he adds.
A 2016 study showed that starting resistance training with large muscle groups, like your chest and glutes, and progressing to small muscle groups, such as triceps and shoulders, produced the largest testosterone response. But no exercise is going to drive your T levels through the roof, and it won’t be a prolonged increase.
Testosterone levels usually increase transiently after weights and intense physical activity about 15 minutes to an hour after the workout, Dr. Cherullo said.
Mixing endurance and resistance training likely leads to a “zero-sum game,” when it comes to its effect on testosterone, Hackney says.
Don’t worry so much about just focusing on resistance training because you think it raises your T. Dr. El-Zawahry says any exercise benefits your general health and helps you maintain a healthy body weight and T level.
While there’s research on the subject, Dr. McNeil says yoga and pilates, which incorporate aspects of strength training, likely have a positive impact on testosterone.
How Long Does the T Boost Last After Working Out?
The elevated testosterone that you see from working out is usually temporary—maybe an hour or so, Hackney says. Then, your T levels will return to normal.
‘However, you may feel a good boost of energy with exercise because of a surge in cortisol level rather than testosterone,’ Dr. El-Zawahry says.
Remember, too, that your testosterone levels naturally fluctuate during the day. By exercising, you’ll likely maintain a healthy weight and improve your cardiovascular functioning, which has positive effects on your testosterone.
However, working out alone won’t cause a long-term increase in testosterone levels, Dr. El-Zawahry says.
Will Exercising Affect Your Testosterone Test?
Your testosterone levels tend to be the highest in the morning and then gradually drop throughout the day, Dr. Cherullo said. That’s why doctors typically test your T in the morning.
If you typically run in the morning or take 5 a.m. HIIT classes, it likely won’t affect your test results, Dr. McNeil says. So don’t skip your workout—it’s good for your T levels and your overall health.
Erica Sweeney is a writer who mostly covers health, wellness and careers. She has written for The New York Times, HuffPost, Teen Vogue, Parade, Money, Business Insider and many more.
Fitness
How brain exercises can help lower the risk of dementia
FRESNO, Calif. (KFSN) — Keeping our minds sharp and active can keep our brains healthy.
“Any exercise retrains the brain,” says Dr. Perminder Bhatia. “What happens when people get dementia is that the connections in the brain are going slowly. When we retrain the brain, the connections become faster. When the connections become faster, they produce more neurotransmitters at the same time.”
A study in the Alzheimer’s Association research journal found that simple brain speed exercises were linked to lowering the risk of dementia by 26% at a 20-year follow-up.
Researchers looked at participants who did the initial speed exercise, plus the booster sessions.
“They gave them exercises to speed and coordination of their eyes at points to make them faster,” Dr. Bhatia said.
Researchers noted that the speed exercise worked differently than memory ones because it pushes the mind to adapt.
Dr. Bhatia is the medical director of the Neuro-Pain Medical Center in northeast Fresno.
He gave a demonstration of what these exercises look like.
One example he showed was from the website Brain HQ.
“It gives you what you want,” Dr. Bhatia said. “Auditory brain speed, visual brain seed, field of view and safety. This game is called Hawk-Eye.”
Dr. Bhatia recommends that people over 50 years old start these exercises, but anyone can start these sessions at any age.
There are more steps we can take to reduce our risk.
As we age, doctors say we become more susceptible to dementia.
That’s why living a healthier life and staying stimulated can improve our well-being for years to come.
For news updates, follow Ana Torrea on Facebook, X and Instagram.
Copyright © 2026 KFSN-TV. All Rights Reserved.
Fitness
If You’re Building a Home Gym, Start With Dumbbells and a Yoga Mat
To join or not to join a gym: That is the question. If you opt out of building a home gym, you can join a club and have access to more weights and machines. Friends and classes motivate you to keep coming, and that monthly bill keeps you disciplined. On the other hand, gym memberships are steep, workouts can get hijacked by bullies, and going to the gym is an additional commute.
My gym tardiness, however, will likely catch up to me. One of the most consistent messages from health and fitness experts today is that lifting weights has immeasurable benefits. Strength training allows us to keep doing the things we love well into our advanced years. It reduces blood sugar, lowers blood pressure, burns calories, and reduces inflammation. A recent review of studies in the British Journal of Sports Medicine by Harvard Medical School found that strength training is linked to lower risk for cardiovascular disease, diabetes, and cancer and provides a 10 to 17 percent lower overall risk of early death.
But you don’t need all the time and money in the world to have a great home gym. Reviews editor Adrienne So and I have been slowly adding to our existing, minimalist home gyms in our living rooms and garage—a roughly 10- by 10-foot patch in our basements and living rooms. There’s a ton of equipment out there, but for maximum results, I asked two physical therapists—Grace Fenske at Excel North Physical Therapy and Performance and Samuel Hayden at Limit Less Physical Therapy—for their recommendations.
Here’s a PT-recommended guide for an ultrasimple setup that will keep you pumped and motivated. Don’t see anything you like? Don’t forget to check out our existing guides to the Best Running Shoes, the Best Fitness Trackers, or the Best Walking Pads.
Jump To
Adjustable Dumbbells
Yes, these are very pricey. But people outgrow their small dumbbells very quickly, and if you bite the bullet early, adjustable dumbbells take up a lot less space than individual dumbbell or kettlebell sets. The Nüobell adjustable dumbbells required 38 patents and allow users to increase weight in increments of five pounds all the way up to 80 with a twist of the handle. Each dumbbell set replaces 32 individual dumbbells. In a cramped space, that’s a game changer.
The way that both Steph’s Nüobells and my Nike adjustable dumbbells work is that the full barbell fits into a cradle. (You can also mount the barbells in a stand.) When the user twists the handle to five pounds, the aluminum bar with grooves will grab onto the first hollowed-out plate, which is 2.5 pounds on each side of the barbell. With each subsequent turn of the handle the bar will pick up heavier weight in increments of five pounds. A safety hook at the bottom of the cradle ensures the barbell weight must be locked in place before lifting.
I like my Nike dumbbells because the end of the dumbbell is flat, which means I can rest it on its end on my thigh without putting a divot in my leg. Also, the plates aren’t round. If you have a big round dumbbell on the floor, or especially in your garage, it will find the nearest incline and roll away on top of a house pet or child. You can still take individual plates out of the rack if you need them for leverage under your heel or for mobility exercises. Whichever one you choose, though, both Steph and I recommend getting a floor stand to decrease strain on your back. —Adrienne So
Fitness
Sanford expert shares tips for improving heart health
FARGO — While we know exercise is a key part to keeping our hearts healthy, it can be challenging to know where to start.
That’s why Randy Martin, manager at Sanford Sports Performance, says talking to your physician or meeting with a personal trainer can help you create a workout plan.
The American Heart Association recommends 150 minutes of moderate exercise or 75 minutes of vigorous exercise per week.
Martin says jogging, rowing or using an elliptical are simple exercises that can improve your heart health by elevating your heart rate.
“So it’s never too late to start an exercise program. Of course, you want to kind of maybe consult your physician ahead of time and get his or her approval before you start an exercise program,” Martin said.
It’s important to include some strength training into your workout routine, he said.
Exercises such as squats and dead lifts increase your heart rate while working muscles throughout your entire body.
Kjersti Maday joined WDAY as a reporter in May of 2024. She is a native of Granada, Minnesota and graduated from Minnesota State University Moorhead in 2015.
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