Rather than target this from a sociological or art perspective, I'll tackle this from a science fiction angle. Fact 1. Heroes are strong. Acts of heroism usually require strength, be it lifting a bus to free children or punching a super-villain into the sun. All this requires strength of some sort. Leaving aside super-natural sources of strength (magic, physics), acts of strength required and build muscle. Steve Rogers and Peter Parker are superheroes because they received augmentations that build their muscles to allow them to be heroes. Muscle requires a lot of calories to maintain, acts of strength require calories to perform. Heroes rarely get a lot of downtime, and are frequently called upon to act. This means eating massive amounts when and where they can. To a certain extent science fiction is fiction, but energy comes from somewhere. Brain power is one of the largest drains on human energy, so physics or mental heroes, including Professor X, Magneto or Storm are all actively thinking at levels far beyond human people - which requires chemical energy, food, See details to perform.

This is backed up in canon by Amadeus Cho who is explictly stated as need to eat lots after his superhuman calculations. Lastly, Prime Boosts Wolverine is constantly carrying many kilograms of metal on his bones, every action for him is weightbearing. His immense healing factor requires an intense metabolism. Heroes bodies have to adapt to prioritise repair over storage. Fact 3. Heroes hang out with other heroes. Cyclops's power comes from his eyes, but he is hanging with people like Wolverine and Quicksilver. He can never be as strong or as fast as them, but he still needs to hold his own. Also, Learn more these are para-military groups working with little support, if team members go down, which frequently happens, they need to be able to get them out. Physical training is a requirement of the job. In the movie XMen: Days of Future Past Mystique was shown working out, not for her looks (she can look how she wants) but so she was trained and able to keep up with the abilities of the rest of the team. Lets also not forget that heroes are human with all the same flaws. If you are Tony Stark standing next to Steve Rogers in the Avengers showers after a big day of fighting, you are going to feel a little diminutive, so you might work a little harder to prove even without the suit you can hold your own.

Why Did I Gain Weight After Working Out? There are several research-backed reasons why you might notice a slight weight gain after exercise. These include muscle gain, water retention, Prime Boosts post-workout inflammation, supplement use, or even undigested food. In most cases, post-workout weight gain is temporary. Here is what you need to know about gaining weight after working omuscle-a positive trend that leads to a leaner, stronger body. Water retention is a common cause of temporary weight gain. Pre-menopausal people are especially prone to body-weight fluctuations throughout the month due to hormonal changes. If you have periods, you may notice some degree of bloating immediately before and during your period. Exercise can help reduce pre-menstrual symptoms, so it's helpful to keep up with your workouts, though you may still see an increase on the scale. Studies have shown that fluid retention peaks on the first day of menstrual flow. It is lowest during the mid-follicular period (the middle phase of your cycle) and gradually increases over the 11 days surrounding ovulation. The degree to which you see an increase on the scale varies from person to person, but at least a slight increase in weight-even after exercise-is normal.