Men's muscles after 40: the strength that protects everything else

Everyday loads feel heavier, your grip is weaker, and climbing the stairs leaves you out of breath. With age, muscle quietly melts away — and it's not only about how you look. The good news: muscle responds to training at any age.

Why it matters

• Muscle is the main "consumer" of sugar. The less of it you have, the harder it is for your metabolism and the faster the belly grows.
• Muscle holds up your bones. Along with muscle, bone is quietly lost too, and men cope badly with fractures.
• Strength means independence. Weakness leads to falls, and falls lead to fractures.

Testosterone supports both muscle and bone. But testosterone therapy doesn't protect bone from fractures: in a large trial there were no fewer fractures. What protects bone and muscle is load and food.

What works

Strength training 2–3 times a week, with progression. The basics are squats, pulls and presses. When it gets easy — a bit more weight or more reps. The load should be noticeable: the last reps take effort.

A little impact. Step-ups and light jumps, if your joints allow — this is the signal for bone to stay strong.

More protein than you think. 1.2–1.6 g per kilogram of body weight a day, 30–40 g at every meal. With age, muscle responds worse to protein, so you need more of it. For example: eggs with cottage cheese, a palm-sized portion of meat or fish, lentils with cheese.

Vitamin D and calcium — mostly from food: fish, dairy, leafy greens.

Balance. Balance exercises prevent falls.

What about supplements?

• Creatine — about 5 g a day together with strength training gives a small but real gain in strength. With kidney disease — only after talking to a doctor.
• Protein powder is a handy backup if you can't get enough protein from food.
• "Testosterone boosters" don't build muscle.

How to track it without gadgets

Watches and rings don't measure muscle or bone. Your guide is strength and function: do everyday loads feel heavier, is your grip getting weaker, can you easily get up from a chair without using your hands?

When to see a doctor

• Weakness is getting worse quickly, with no clear reason.
• You've had a fall or a fracture from a minor injury.
• You've lost height or started to stoop.
• You've been on steroids for a long time or are having treatment that lowers testosterone.

What to try this week

• Two 30–40 minute strength workouts on different days.
• A source of protein at every meal, starting with breakfast.
• Every day, at least one flight of stairs instead of the lift.

This is general information, not a prescription. Tests and treatment are chosen by a doctor.