According to some experts, why do the winter blues happen

winter blues happen because we get less sunlight in the winter then we would in the other seasons.

Explanation:

think about how the earth rotates and the direct sunlight amount changes

Whenever you use your mobile phone to make a call, it emits electromagnetic radio waves also known as radio frequency or RF energy. Once the radio waves are emitted, the antenna from the nearest cell phone tower will receive them.

Explanation:

hope this helps :)