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updates | June 08, 2026

Can exercising too much cause weight gain?

Weight gain

Exercising too much without resting enough in between can lead to low testosterone levels and high levels of cortisol, the stress hormone. These hormonal changes are often associated with loss of muscle tissue, weight gain, and excess belly fat.

Why am I putting on weight when Im exercising more?

Glycogen or sugar that your muscle cells convert to glucose is the energy source for your muscles. When you exercise regularly, your body stores more glycogen to fuel that exercise. Stored in water, glycogen has to bind with water as part of the process to fuel the muscle. That water adds a small amount of weight, too.

Can working out everyday make you gain weight?

Cardio can't directly cause you to gain weight or fat. According to Mayoclinic, how you eat and drink in addition to your physical activity level are things that ultimately determine your weight. This is also impacted by your metabolism — the process by which your body converts what you eat and drink into energy.

Can I gain weight from over exercising?

Overexercising can cause a collection of symptoms, referred to as overtraining syndrome, which can be deleterious to your health. It may even stall weight loss and lead to weight gain.

Can too much exercise make you not lose weight?

One of the main reasons why burning calories through exercise may still not result in weight loss is due to overexertion, or inflammation of your body. If you exercise too hard on a daily basis, there is an excess of inflammation in your body. All the added up inflammation makes you gain more weight than lose.

30 related questions found

What are signs of overtraining?

Lifestyle-related signs of overtraining

  • Prolonged general fatigue.
  • Increase in tension, depression, anger or confusion.
  • Inability to relax.
  • Poor-quality sleep.
  • Lack of energy, decreased motivation, moodiness.
  • Not feeling joy from things that were once enjoyable.

What are the symptoms of over exercising?

Here are some symptoms of too much exercise:

  • Being unable to perform at the same level.
  • Needing longer periods of rest.
  • Feeling tired.
  • Being depressed.
  • Having mood swings or irritability.
  • Having trouble sleeping.
  • Feeling sore muscles or heavy limbs.
  • Getting overuse injuries.

Can too much exercise cause bloating?

“When you exercise you stimulate the sympathetic nervous system. This increases the production of stress hormones and shuts off digestion, which can lead to some bloating and swelling of the body.”

How much is too much exercise?

How much equals too much is a more individualized question, though. We know that 45-60 minutes a day is generally recommended, but even as little as 15 minutes a day will reduce mortality risk and extend life expectancy.

Why am I gaining weight when I'm eating less and working out?

A calorie deficit means that you consume fewer calories from food and drink than your body uses to keep you alive and active. This makes sense because it's a fundamental law of thermodynamics: If we add more energy than we expend, we gain weight. If we add less energy than we expend, we lose weight.

Can too much exercise cause water retention?

Intense workout stresses our body in a positive way. That stress and micro-tearing damage to the muscle fibers induces water retention in the body. Your body releases cortisol during exercise, which can impact your fluids and cause your body to retain water.

Why have I gained 10 pounds since working out?

“When you start exercising, your muscles start gobbling up fuel called glycogen,” says Krista Scott-Dixon, Ph. D., Director, Headspace Adjustment Bureau, Precision Nutrition. Since glycogen stores water, you could gain up to 10 pounds in water weight alone, says Scott-Dixon.

Is it normal to gain weight before losing?

You'd think that going on a strict diet and exercise regimen would help you drop pounds quickly, but most people actually gain weight at first. If this has happened to you, don't give up on your goals just yet.

How long does it take to see results from working out 5 days a week?

You're putting your whole heart and soul into the fitness regimen, going to the gym five days each week. You should be able to notice visible changes after about two weeks of training 5 days a week.

Is 2 hours of exercise a day too much?

Those who need to lose weight might need even more. Based on that, working out 2 hours per day might not be a very big stretch for most people. However, if you are new to exercise, a 2 hour workout can do more harm than good. Start with 15 minute sessions, then gradually at time as your body adapts.

Is 4 hours of exercise a day too much?

So, what exactly is "too much" exercising? Well, it depends on factors like your age, health, and choice of workouts. But in general, adults should get around five hours a week of moderate exercise or two and a half hours of more intense activity.

Is 6 day workout too much?

Do not work the same muscles on consecutive days—allow them time to recover. Some people do well on a five to six day a week schedule, working only one muscle group each time. If you want to go the gym more often, you can...but don't work overwork tired muscles. They need the rest.

Why am I puffy after working out?

Still, breathing too hard during a workout can cause you to suck in a lot of air. “Instead of the air going straight to your lungs, it can make its way down into your digestive system,” Josh Schlottman, a certified trainer and nutritionist, tells Healthline. “When this happens, you'll feel bloated and puffy.”

Why does my stomach seem bigger after working out?

Inflammation

In order to repair itself after exercise, the body sends extra fluid to your tissues. While the process is actually important for recovery, the excess fluid can make you feel heavier than you did before a workout.

Can too much exercise be harmful?

Without treatment, overtraining can weaken your immune system and may cause osteoporosis and bone loss in women. In extreme cases, heart damage and rhythm disorders can occur. Those with genetic risk factors are especially vulnerable to cardiac problems from overtraining.

Is working out everyday OK?

A weekly day of rest is often advised when structuring a workout program, but sometimes you may feel the desire to work out every day. As long as you're not pushing yourself too hard or getting obsessive about it, working out every day is fine.

Is an hour of exercise a day too much?

According to a study published in the American Journal of Physiology, 30 minutes of daily exercise is just as effective for losing weight as 60 minutes.

How much exercise is too much for a woman?

By: Women's Care Staff

For the rest of us, doctors recommend 150 minutes of physical activity. However, even in those 150 minutes, you can overdo it and push yourself too hard. To know the effects of over-exercising, you should assess how it makes you feel physically and emotionally.

Can you gain 4 lbs in 2 days?

Daily weight fluctuation is normal. The average adult's weight fluctuates up to 5 or 6 pounds per day. It all comes down to what and when you eat, drink, exercise, and even sleep.

Why do I gain weight after HIIT?

HIIT may stimulate significantly acute cortisol response and chronically high level of this hormone can increase the risk of a number of health issues including weight gain, depression, digestive issues, chronic fatigue, sleep problems and brain fog.