The Effect of the Morning Sun

Since getting cold, many people might feel that it's hard to get up in the morning.

Today, I found a "habit of exposure to the morning sun," that is recommended for such people.

Usually, there is a gap between the living cycle and the body clock.

However, by being exposed to the morning sun, the body clock is reset and the gap is able to be modified.

The ideal time to be exposed to the light is about 20-30 minutes within two hours after waking up.

When you wake up, if you go to near the windows, open the curtain, and stay there for a while, you can spend the whole day cheerfully.

Actually, it's enough as long as the illumination intensity is more than 2000 lux, but general indoor lighting is around 1000 lux (general convenience store lighting is around 2500 lux).

On the other hand, the illumination intensity is around 50,000 lux in the sunny day, around 10,000 lux in the cloudy day, and around 5,000 lux in the rainy day.

It's the most efficient to be exposed to the sunlight.

朝日の効果

最近寒くなり、朝起きるのが辛いという人も多いかと思います。

今日はそんな人におすすめされている、「朝日を浴びる習慣」を見つけました。

人間は通常、生活の周期と体内時計の間にはずれが生じます。

しかし朝日を浴びることで体内時計がリセットされ、生活周期とのずれを修正することができるそうです。

朝日を浴びる理想的な時間は、起床後2時間以内に20～30分程度だそうです。

起きたらなんとか窓のそばに行き、カーテンを開けてしばらく過ごせば、その日一日元気に過ごすことができます。

具体的には2000ルクス以上の光であればいいようですが、室内の照明はおおよそ1000ルクス程度です（コンビニであれば約2500ルクス）。

一方、晴れの日は50000ルクス、曇りの日は10000ルクス、雨の日は5000ルクス程度だそうなので、とにかく外の光を浴びるのが一番効率が良いです。