As an Indian, I sometimes look at two aspects simultaneously – a post like this and an old man walking on the road.
And I wonder how I can make this old man walk into a gym. Then I think of my hometown, villages, and tier two cities where weight lifting is either not there at all or is meant for athletes.
It seems we are trying to create a life which hypothetically claims that we all should be able to lift weights into our 90s or run on treadmills until we die. I am not sure about this and only time will tell. However I doubt this is a possibility by a stretch for all humans. There are outliers, but one thing which I see and notice persistently is – the human body can thrive on extremes but sustaining extremes is not possible.
Appreciate the muscle focus, but let’s zoom out. As a sports scientist, I’ve seen this narrative overhype one organ while ignoring the ecosystem. Thread on why it’s not “lift or bust” for metabolism/aging:
1) Muscle mass doesn’t cause illnesses, it’s often the victim. Chronic IR and inflammation erode it first, creating a cascade. Fix roots (movement, not meds) before chasing hypertrophy. Data shows IR precedes sarcopenia by years, not vice versa.
2) 1% muscle loss post-50? In healthy folks, it’s negligible and liveable because appetite balances it, function holds. Good health – dodge pharmacology, meaning keep yourself healthy and under check without needing a doctor’s visit. For most, that’s the cliff, not a few grams of quad.
3) Gyms aren’t the only path. Daily movement (chores, walks, arm circles) sustains mass via myokines without injury risk. Seen 80+ thriving without weights? If we come out of research labs and play it out in the real world, then we realise it’s NEAT not barbells. Preserving function is what matters most.
4) Muscle mass advantages – sounds brilliant on paper. No scientist can argue. But would you rather be at 1600 calories at 80 and moving just fine to do your work without any medical intervention, or be at 3000 calories just because you have huge muscle mass which is now slowly converting into fat? I think the stress should be to maintain muscle mass for as long as we can, and these types of posts must emphasise other ways to do it. Just lifting doesn’t cut it because we don’t see healthy bodybuilders at 80.
5) Maintaining big muscle mass in older age often leads to higher intramuscular fat accumulation due to aging physiology, requiring more calories to sustain the bulk which directly conflicts with proven longevity benefits of calorie restriction.
The longevity sweet spot isn’t maximal muscle it’s sustainable function at lower caloric demand, as seen in thriving elders who age well on natural NEAT rather than extreme training or high-volume eating.
Bottom line: Protect the system, not just the engine. Muscle is as important as heart, liver, or brain. But it is not as devastating as inflammation, insulin resistance, or poor organ health.
Umesh Chhikara 