When to do HIIT Sprints :Time of the day and the sine-wave of aging

Probably my earliest experience with HIIT sprints was in junior high and I experimented with doing them first thing in the morning before breakfast. The problem was after I would finish, I would go to school feeling very tired. I think it was about lack of sleep as when your a teenager you need more and even for my age now it still wouldn’t have been enough.

Later on I started doing them closer to the evening. Recently my problem was when I would do them closer to the evening I would end up still going to sleep later than I should if there was nothing pressing I needed to do. This could be because metabolism stays elevated after cardiovascular exercise in general and especially for HIIT were the body may spend up to 48 hours replenishing lost energy though increase oxygen consumption and usage after exercise.

Then when I’d go to bed too late, I would wake up feeling drained instead of refreshed and so It would take me longer to work out again.

What I realize now is that it only makes sense to do HIIT in the morning. At least for me right now. So that I give my body the whole of the day to recover what it can and then the night and the next day. In a way it’s like, doing a workout in the morning is like doing it earlier in my life so that I get to the next workout sooner in my life lol. Iunno, Obviously that isn’t necessarily so as if it is the evening and I can do a workout but instead I wait till the next day, it’s later in life. It’s just, maybe the body doesn’t see life like that.

The body doesn’t age in a linear fashion. It ages as the day goes by, and reverts back to youth as it sleeps and even during periods of relaxation during the day. So age for the body is more of a sine-wave on a diagonal where the top left is birth and the bottom right is death and the upper-wards going side is sleep and rest and the downwards facing side is wakefulness and work. So to work out in the morning is to work out when I’m younger and have more time to recover where as to work out in the evening is to work out when I’m older and have less time to recover, within one cycle of a wave. One cycle where the next cycle will start slightly lower.

Beyond the physical advantages of workout in the morning, I find with the increase in metabolism, life seems to move by not as fast. It’s like I am more connected and able to experience things and probably more able to form memories as well. This is so important if you think about it because mortality is relative to what we think is a long time and if we feel life is passing by to quickly then even if we life to 100 it won’t feel like enough. I feel this slowing down of time is as much a function of emotional health as cognitive enhancement. Increased serotonin helps in building stronger memories and memory how we measure how long we have lived. As well serotonin is often found low in depressed people and these people find it hard to remember positive experiences.

Well anyway, people act like exercise is just something we do so we don’t die so fast but it’s far more than that.


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