re: Help: aching knees at night

When you’re older, joints can ache for no reason at random times. Everyone will have a certain degree of osteopenia in their joints when they reach their 60s. Some will have it at a greater degree depending on factors like genetics, weight, etc.

Like another guy on here said, taking long walks is the easiest and best way to preserve knee health. There’s been studies done that show older people who walk more frequently and longer have lower rates of osteopenia compared to those who walk less.