Basically, you should plan you old age ahead of the time.
You will lose your muscle tissue with the age and it will happen pretty fast.
As the heart is also a muscle tissue, your heart will degrade.
The muscle tissue can be considered a separate organ of the human body. It's purpose to make sure every other organ is working properly, basically. Not on the "control" level which is what brain does, but on "demand is on this" signal that goes to brain. Your body is evolutionary constructed to support muscles and brain. If you do something we did through our evolutionary process, your muscles adapt (and other functions follows) and your brain grow stronger.
Training muscle makes body to produce excess BDNF hormone (brain-derived neurotrophic factor). The level of BDNF hormone after resistance exercise is about 40% higher than in rest, and it then promptly goes lower to also about to 40% of the rest condition (indicating quick utilization).
This is just an example of evolutionary protection of the brain.
The aerobic exercise has shown to provide cognitive benefits for older age (and even young age, there's correlation between university grades and physical activity). But, if you want to be very enduring, you have to do heavy resistance training: http://www.ncbi.nlm.nih.gov/pubmed/23914932
And last, but not least.
Man and women have about the same mechanisms regarding erotic arousal. The venous blood goes into cave bodies in penis or clitoris and veins at exit are (partially) blocked by special muscles. Cialis, for example, blocks destruction of special agent that reacts to nitric oxide in the venous blood and makes those special muscles to contract, blocking the blood. The side signal of protein synthesis is the higher level of NO in the blood. Higher NO level makes more probable the reaction that produces arousal, thus makes the sexual arousal more probable (or more stable). Protein synthesis occurs after muscle training sessions. So, if you want a healthy sex life, you better do weight training.
You will lose your muscle tissue with the age and it will happen pretty fast.
As the heart is also a muscle tissue, your heart will degrade.
The muscle tissue can be considered a separate organ of the human body. It's purpose to make sure every other organ is working properly, basically. Not on the "control" level which is what brain does, but on "demand is on this" signal that goes to brain. Your body is evolutionary constructed to support muscles and brain. If you do something we did through our evolutionary process, your muscles adapt (and other functions follows) and your brain grow stronger.
Training muscle makes body to produce excess BDNF hormone (brain-derived neurotrophic factor). The level of BDNF hormone after resistance exercise is about 40% higher than in rest, and it then promptly goes lower to also about to 40% of the rest condition (indicating quick utilization).
This is just an example of evolutionary protection of the brain.
Training muscle makes your character better. No, really, it is better than toning exercise: http://www.ncbi.nlm.nih.gov/pubmed/20101012
The aerobic exercise has shown to provide cognitive benefits for older age (and even young age, there's correlation between university grades and physical activity). But, if you want to be very enduring, you have to do heavy resistance training: http://www.ncbi.nlm.nih.gov/pubmed/23914932
And last, but not least.
Man and women have about the same mechanisms regarding erotic arousal. The venous blood goes into cave bodies in penis or clitoris and veins at exit are (partially) blocked by special muscles. Cialis, for example, blocks destruction of special agent that reacts to nitric oxide in the venous blood and makes those special muscles to contract, blocking the blood. The side signal of protein synthesis is the higher level of NO in the blood. Higher NO level makes more probable the reaction that produces arousal, thus makes the sexual arousal more probable (or more stable). Protein synthesis occurs after muscle training sessions. So, if you want a healthy sex life, you better do weight training.
To conclude, let me say that higher NO level makes you ligaments stronger by providing you with the best muscle tissue enlarging program: http://www.hypertrophy-specific.com/hst_II.html (see "utilizing lactic acid") And also see this: http://www.nutritionexpress.com/showarticle.aspx?articleid=2... (regarding brain functions and relation between NO and lactic acid)