A great number of studies have found that exercise can provide all these benefits and more, even for people who begin late in life. We are learning that much of the physical decline that older people (and younger people) suffer from stems not from age but simple disuse. When we sit all day year after year, our bones, muscles, and organ systems atrophy, and our self confidence wanes. But the ability to exercise to revitalize and invigorate our lives is now a proven fact.
This comes from the book " Healthy at 100" that I am currently reading.
It is now widely recognized that there are benefits to all types of exercise. Aerobic exercise is particularly good for serving the heart, lungs, and brain. Stretching (such as yoga) enhances circulation, increases range of motion, and provides greater body awareness. And weight lifting improves bone density while increasing muscle strength, balance, and overall fitness, something that can be even more important for the elderly than for high school jocks.
Study results showed...after a year, women who had not done any strength training had lost bone density, while the bone density of the weight lifters had actually increased.
Helps prevents Alzheimers
Exercise increases the flow of oxygen to the brain. This in turn produces a large number of capillaries in the brain, and possibly the production of new brain cells. It also boosts brain neurotransmitters that play a crucial role in cognition.
I don't have the time
Those who think they have no time for exercise will sooner or later have to find time for illness.
I don't have the energy
- just start. It will give you energy. Start small if you have to. Keep with it. You will get the energy.
I'm not overweight
This was my thinking for a while. Why do I need to exercise each day when I'm not overweight.