Muscle & Strength

Build muscle and keep it as you age. The training that carries the load, the protein that supports it, and honest numbers on what each is worth.

Muscle answers to a small number of variables and the research on them is more settled than the internet suggests. This hub covers how much training it takes, how often, how much protein supports it, and how to measure what you are made of.

It also covers the part men over forty care about most. Muscle loss with age is real, it starts earlier than most people expect, and it responds to the same training that builds muscle at any age.

All guides in this hub

A man putting his gym shoes beside a dresser as he prepares for bed.
Muscle & Strength

Tired after every workout: check sleep before adding more training

A practical sleep check for men who lift, including when snoring, gasping or daytime sleepiness needs assessment rather than another supplement.

2 min read · Oct 2026
Hands inspecting a resistance band with several other bands laid flat on a workout mat.
Muscle & Strength

Getting stronger with resistance bands: track more than the color

Make a home band workout repeatable, know when to progress it, and check the equipment without treating a color as a universal weight.

2 min read · Oct 2026
A man on a gym bench reviewing a training notebook beside dumbbells.
Muscle & Strength

Strength training has stalled: what to check before changing programs

Use your training record to separate one bad session from a plateau, then change a manageable part of the plan without chasing soreness.

2 min read · Oct 2026
A man resting on a chair after a modest home workout, with dumbbells and a resistance band nearby.
Muscle & Strength

Sore after lifting: when to recover and when to stop

How ordinary soreness after an unfamiliar workout differs from pain that needs assessment, with practical decisions for the next session.

3 min read · Oct 2026
A man preparing a plate of salmon, lentils and greens at home, with a bowl of yogurt nearby.
Muscle & Strength

Do you need the same protein on rest days?

Why protein still matters between strength sessions, how to think about a daily target, and when an extra shake is unnecessary.

3 min read · Oct 2026
A middle-aged man setting two dumbbells beside a mat at home.
Muscle & Strength

How to restart strength training after a long break

A practical return to lifting after months or years away: two manageable full-body days, how to choose the first load, and when to get medical advice.

5 min read · Oct 2026
Pencil height marks scored into a painted door frame in a hallway, with a coat hanging out of focus behind.
Muscle & Strength

BMI for men: how accurate it is, and what to measure alongside it

BMI misses most men carrying excess fat, and a high reading is not a diagnosis either. What the accuracy studies found, and the measurement to take with it.

7 min read · Sep 2026
Instructional view shows correct waist, neck and height measurements used in a body fat estimate.
Muscle & Strength

The US Navy body fat formula: how accurate it is, and what the Navy uses now

Online calculators still run the old neck-and-waist equation. How well it performed against laboratory methods, and what the Navy measures instead now.

6 min read · Sep 2026
A man performs a controlled cable row while weights, a training log, rest timer, balanced meal and sleep mask map the main variables for muscle growth.
Muscle & Strength

How to build muscle: the training variables that matter

Sets per week, how often you train a muscle, how long you rest and how much protein you eat. What the trials show, and what to ignore.

8 min read · Aug 2026
Older man performs a controlled goblet squat while a coach monitors his form, with strength, protein and recovery shown as the supporting plan.
Muscle & Strength

Muscle loss with age: how fast it happens and what helps

Muscle loss can begin gradually in midlife and accelerate later. Learn how strength training, protein, aerobic activity and medical review fit together.

7 min read · Jul 2026

Where to start

  1. How to build muscle Sets per week, frequency, rest and protein, with the dose-response behind each one.
  2. Muscle loss with age How fast it happens, and what reverses it after sixty.
  3. How much protein you need Training is the signal and protein is the material. One without the other underdelivers.

What this hub answers

How many sets per week build muscle?
Growth tracks weekly volume, with each additional set per muscle worth about 0.37% more growth in pooled trials. Around ten hard sets per muscle per week is a defensible target for most men.
How often should I train a muscle?
When weekly volume is matched, a 2019 meta-analysis found no meaningful hypertrophy advantage from higher frequency. Split the work across sessions when it improves set quality, recovery or adherence.
Is it too late to build muscle after sixty?
No. Reviews of resistance training in older adults find the ability to respond is comparable to younger people, though the adaptations take longer to appear.