Protein, sleep, recovery

Training is the stimulus. Recovery is what turns the stimulus into adaptation. At 40+, the recovery side of the equation matters more than the training side, and most men get it backwards.

You can't out-train bad sleep. You can't out-supplement low protein. You can't out-discipline a chronically stressed nervous system. The boring inputs are the ones that compound.

Protein: how much, when, and why it matters more now

The evidence on protein intake for active adults is one of the more settled areas in nutrition science. The consensus range for muscle maintenance and growth in active adults sits between 1.6 and 2.2 grams per kilogram of bodyweight per day. Older adults benefit from the higher end of that range because of something called anabolic resistance.

Anabolic resistance is the technical name for what your 40+ body does in response to protein. Younger muscle responds vigorously to a moderate dose of protein. Older muscle needs a bigger dose to trigger the same response. Translation: at 40, eating the protein you ate at 25 is not enough to maintain the muscle you had at 25.

For an 80kg man, that's roughly 130-175g of protein a day. Spread across three to four meals, that's 35-45g per meal. In whole-food terms:

• A palm-sized chicken breast: ~30-35g
• 200g Greek yoghurt: ~20g
• Three eggs: ~18g
• A scoop of whey: ~25g
• 150g cottage cheese: ~17g
• 100g lean beef: ~26g
• A tin of tuna: ~25g

You don't need to weigh and track forever. You do need to spend two weeks logging what you actually eat to find out where the gap is. Most men find they're at 80-100g a day when they think they're at 150g. The fix is usually a protein-anchored breakfast (eggs, yoghurt, or a shake) rather than a carb-anchored one (toast, cereal, banana).

Sleep is a training input, not a luxury

If you train hard and sleep poorly, the training does not work the way it should. Muscle protein synthesis happens during sleep. Tendon and connective tissue repair happens during sleep. Hormonal recovery (testosterone, growth hormone, cortisol normalisation) happens during sleep. The deep sleep stages, in particular, are where the magic happens, and deep sleep is the part most middle-aged men are losing.

Things that wreck sleep at 40+:

• Alcohol within three hours of bed (sedates you to sleep, then wrecks the back half of the night)
• Late, heavy meals
• Screens after 10pm (light and content both)
• Inconsistent bed/wake times (your body wants a schedule)
• Caffeine after 2pm (the half-life is roughly 5-6 hours, the quarter-life is longer)
• Bedroom temperature above 19C
• Stress carried into the bedroom without a wind-down

Things that fix sleep:

• Same bed time, same wake time, seven days a week (yes, weekends too)
• Get morning sunlight in your eyes within 30 minutes of waking (anchors the circadian rhythm)
• A 30-minute wind-down without screens
• Cool, dark, quiet room
• Train earlier in the day if late training keeps you wired

Eight hours in bed for seven hours of sleep is the floor for most men. If you're getting less, the cheapest performance gain you can buy is going to bed earlier. No supplement comes close.

Recovery is the bottleneck (not the workout)

The mistake I made for years was treating training as the variable and recovery as a constant. The truth is the opposite. Your training capacity is downstream of your recovery capacity. If you can recover from four hard sessions a week, train four. If you can only recover from two, train two and make them count.

Signals that recovery is lagging:

• Resting heart rate elevated for more than two days
• Sleep quality drops despite good hygiene
• Motivation to train drops noticeably
• Soreness from one session is still there before the next
• Strength on familiar lifts drops 5%+ for no obvious reason
• Mood is flatter, sex drive lower, irritability higher

Any one of these is noise. Two or three together is the signal. The response is not to push through. The response is a deload week, an extra rest day, or both.

The body metaphor

Think of recovery as the bank account that funds training. Every hard session is a withdrawal. Sleep, food, and rest days are the deposits. You can run an overdraft for a few weeks (a fight camp, a project crunch, a holiday with poor sleep) but you cannot run one for a year. The interest payments come due as injuries, plateaus, and burnout.

The men who train consistently for decades are not the ones with the highest pain tolerance. They're the ones who keep the account in surplus.

The supplements that earn their place

Most supplements are noise. The two with strong evidence for active adults at 40+:

• Protein powder. Not magic, just convenient. A whey or plant-based shake makes hitting your protein target easy. Use it as a tool, not a meal replacement.
• Creatine monohydrate. 3-5g a day, taken any time. The most studied performance supplement on the planet. Improves strength, recovery, and (per the evidence) cognitive performance under fatigue. No loading phase needed. Cheap.

What the evidence suggests for some others (vitamin D if you're deficient, omega-3 if your fish intake is low, magnesium for sleep in some people) is supportive but more individual. If you're considering anything beyond the basics, talk to a GP or accredited exercise physiologist who knows your blood work.

The 80/20 of recovery

If you do nothing else from this module, do these:

• Aim for 1.6-2.2g of protein per kg of bodyweight, split across 3-4 meals
• Anchor breakfast with protein (35g+) instead of carbs
• Bed by 10:30pm, wake by 6:30am, seven days a week
• Morning sunlight within 30 minutes of waking
• Two full rest days a week, no exceptions
• Creatine 5g daily
• Train hard. Recover harder.

The aphorism

Train. Sleep. Eat. Repeat.

Further watching

• Sleep Is Your Superpower — Matt Walker, TED (19:18)
• 9 Tips to Improve Your Sleep — Andy Galpin (14:02)