Sarcopenia. A common aging byproduct is sarcopenia, or loss of muscle mass. By age 40, men usually have lost 1-5% of their muscle mass, caused by the gradual loss of muscle cell function [R]. This loss accelerates with age and, when left unmonitored, results in fragility and interference with physical activity.

How can I look younger at 40?

40 Ways to Look Younger After 40Stay Moisturized.Limit Your Sodium Intake.Revamp Your Wardrobe.Laugh Often.Get a New Hair Cut.Try Out Hair Extensions.Wear Fitted Clothing.Wear Nail Polish.More items •12 Oct 2017