If you’re over thirty and your joint injury isn’t healing, take collagen.
The efficacy of taking collagen specifically is very much in question. It seems to be about as effective (but much more expensive) than just increasing protein consumption.
There are things you can do, like apply heat and to an extent certain supplements can help (glucosamine and turmeric are the notable ones that have evidence to support them). That said the main thing that really helps is doing dedicated and systematic strength and mobily training for your ankle.
What people tend to forget about infants and small children is that they are constantly exercising, eating a ton of calories, and then getting tons of sleep.
Adults, by contrast, tend to be very sedentary with slower metabolism and a ton of anxiety from stimulants/stress that prevent long, regular rest cycles.
Also, incidentally, if you really want to fuck up a child early in life… Malnutrition, immobility, anxiety, irregular sleep cycles, and lots of stimulants (particularly cigarettes) will have your teenagers looking geriatric.
The primary difference isn’t the exercise but the level of human growth hormone, which starts to drop after age 30
In my experience, injuries go from not healing to healing when I take collagen.
Have you tried jizzing on the ankle? That’s the secret sauce.
Human Body?
Human body from birth to age 29: I am invincible!
Human body once you hit 30: Hey, remember that time your knee was sore for an hour when you were 12? Well now it’s gonna be sore for the rest of your life