I have felt cold recently.

Especially now I am experimenting in the field (outdoor), so it's pretty tough

Before, I have never thought this case.

"Cold" would not have been directly linked to "tough".

Otherwise, I had not been a skiers.

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I think that one of the causes is weight loss.

In particular, since the start of field experiments, the appetite has been considerably reduced due to tough work.

Weight loss also cuts off the muscles that are the source of heat.

This eliminates the resistance to the cold.

So, remember that when the elderly say "cold," it's "tough" and not just "cold."

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Also, the following is just my hypothesis.

"Because I eat pepper on a daily basis"

In other words, the habit of spices such as peppers has begun to break down the heat generation system in my body.

If I consider this a kind of addiction, I can understand that "cold = tough" is one of the symptoms of intoxication.

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In recent years, people who are engaged in construction sites and road construction are overwhelmingly elderly.

And it seems that these people's "cold = tough" slightly outperforms me.

Each industry may have some years of know-how, but I'm worried because it is painful for them.

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Nowadays, I came to think

"It's a waste to pee in the toilet at the station"

"A heat source (3600 calories) with more than 100 degrees of 36 degrees is discharged ... wasteful"

This is the first time that I have started thinking like this.