Testosterone, whichis the primary male sex hormone(also important for women) that is vital for muscle growth, fat loss, protein synthesis, etc, may also be affected by intense energy-restriction for prolonged periods (16). You’ve probably heard of the potentially detrimental effects of high co...
In many ways, a fast metabolism is something of a blessing. People with a fast metabolism don’t usually gain fat easily and are less likely to become overweight, even if they eat unhealthily. That said, that same high metabolism can make it hard to gain muscle and could mean you are s...