eli5: Why do waves make us feel sleepy & tired?

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Been on a bunch of boat rides/fishing trips lately. Can’t help but notice how tired, relaxed, and sleepy everyone feels (especially on the ride back).

Is there a chemical level of science behind this?

In: Earth Science

3 Answers

Anonymous 0 Comments

I’ve got a few suggestions for possible reasons.

Some people find the rhythmic sound of waves very relaxing and lulling, as well as the feeling of rocking back and forth in a boat. The effect could be partly psychological.

Fishing trips traditionally involve a fair amount of drinking beer in the sun, which is a reliable way to feel tired pretty early in the evening. So if any day-drinking is going on, that would explain a lot of it.

Standing up (eta: and sitting up, for that matter) on a boat, especially a smaller fishing boat, requires you to work your leg and core muscles in a way which is very different from standing on land. Actively keeping yourself balanced on a rocking boat all day long is actually a fair amount of exercise, and you might not notice yourself doing it or getting fatigued from it.

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