To lose weight - one should eat less and workout more?
Theoretically, it should work out that way, but the human body is far more complex than that. Frenzied workouts while starving yourself will only work for few kilos. It’s a temporary solution to a permanent problem.
What happens next is the body stops losing weight. When you desperately slash calories, or exercise TOO much, it disrupts the hormone cycle in your body. Making your body feel its survival is under threat.
Your body inherently reacts by overcompensating. It creates irresistible cravings that force you to overeat (many times even when you’re not even hungry!). This is the body’s survival response which in prehistoric times would have ensured continued existence. As a result, it beats up your metabolism to compensate for the drastic decrease in calories, because it’s worried about starvation.
Both the cravings and the sluggish metabolism will happen together because cutting calories too much plummets your leptin levels. Leptin is the hormone that helps regulates your weight (by controlling hunger and your metabolism).
In other words, if you’re PUNISHING your body to lose weight by starving yourself and overtraining, you’re picking a fight you can’t win. Leptin both fortunately and unfortunately is one of the most powerful hormones in your body related to weight loss, there are no two ways about that.