Fact: Never late. Literally.
Muscle extensions, or hypertrophy, perhaps well in 60, 70 and even 80 years. Studies have shown that elderly adults respond positively to stability training, often gaining strength, muscle mass and even improving the bone density. One study in the magazine on the forces and condition showed that earlier sedentary elderly people had reached a significant increase in force within 12 weeks after training.
The body is not just rushing to a towel because you had a 40th birthday. It just wants you to train smarter, restore better and stop comparing yourself with your 25-year-old Selfie in the gym.