Aging and what causes it. Does calorie restriction help?
Aging affects everyone, whether they care or not. We might not pay much attention to it, but it’s a fascinating phenomenon. Right now, it’s still unclear how to slow it down, stop it, or even reverse it. Some animal experiments suggest possible directions, but first, we should clarify what aging actually is and how to measure it. That’s not a simple problem. The easiest way is to count the time from birth until now—but that’s probably not what interests us. What we really want to know is how we compare to others in a similar population. Are we more worn out or less? Is there a chance we’ll live longer than others, or not? Let’s explore this using studies and logical reasoning. First, we need to define how we measure aging. Health might be a good metric. We don’t just want to live long if it means being bedridden, unaware of our surroundings, with a failing body and mind. That’s not a good vision of longevity. We want to stay active and healthy. We want all our organs fully f...