Any exercise is better than no exercise when it comes to losing weight, and ultimately, you should go when you know you can stay consistent because it fits in your schedule. For some people, that’s first thing in the morning, and for others, that’s in the evening after work. Others like to mix it up depending on what’s on the agenda.

In a thought-provoking study, researchers found that moderate-to-vigorous physical activity, such as running, cycling, sports, and brisk walking, is protective against obesity. However, what’s less clear is the optimal time to get those muscles moving and break a sweat. Does it really matter that much? Are we overthinking it? Researchers dived deeper to understand more.

The study

In a study published in the journal Obesity, researchers placed 5285 participants into three different groups based on when they did most of their exercise:

• Morning workout group
• Midday workout group
• Evening workout group

The researchers tested the patterns and associations between the timing of moderate-to-vigorous physical activity and obesity. They compared how exercising at different times related to both waist size and body weight.

The results

The results revealed the following:

• Morning exercise seemed to be the most effective for weight control.
• Those who were the most active in the morning had a lower body mass index and smaller waistlines overall, even when they did the same amount of exercise as those who mostly exercised midday or in the evening.
• Exercising at any time of the day was beneficial for obesity, but morning exercisers had the strongest link to lower obesity.

Meeting the exercise guidelines

Among the individuals who met the weekly exercise guidelines of at least 150 minutes every week, their average body mass index was:

• Morning — 25.9
• Midday — 27.6
• Evening — 27.2

For those who met the exercise guidelines, their waist size was:

• Morning — 91.5 cm
• Midday — 95.8 cm
• Evening — 95.0 cm

Overall, morning exercisers were leaner.

The takeaway

Exercise helps prevent obesity and promotes weight loss, no matter what time you get your muscles moving. This study shows that morning exercise may be superior and offer an extra advantage for weight loss compared with midday or evening exercise. In this study, morning exercisers had lower BMIs and smaller waists. There’s more to the weight-loss picture than exercise alone; other factors like nutrition, hormones, toxicity, sleep, certain medications, and stress also play a role.

Movement is key to longevity. We bang on about it a lot, but it really is the best thing we can do for our physical and mental health in the short and long term. But how much movement we should be doing is up for discussion.

Studies have shown that exercising for long periods of time isn’t always necessary, which is good news, as so many of us are busy and time-poor. Now, new research shows that even just one minute of intense exercise is better for our heart health than walking for much longer amounts of time.

SOUTH SALT LAKE, Utah — Inside Define Fitness, Valeria Macias gets the gym ready for the next class, creating a space not just for movement, but a place for everyone to feel welcome.

After being a personal trainer in Millcreek, she decided to open her own gym. Her dream became a reality when she opened Define Fitness’s doors in March of 2025.

“I just really wanted to make lifting and pilates accessible to women,” she said. “I want to break the barriers down for fitness. I want people to feel welcome.”

She provides strength training, pilates and personal training classes for people of all skill levels.

“It’s good exercise to keep me sane,” she said. “Pilates is really well known for deep core work and getting your breathing in check.”

“We just want to get some good energy and movement going before you head back to your family and have a nice big meal.”

She will be holding a Thanksgiving Day class on November 27 at 9 a.m.

Anyone interested can register for it online here.