Dopamine.

Dopamine is closely associated with satisfaction in human beings. Dopamine is also a double edged sword when it comes to regret. If an individual gets into the regret cycle, he tried to increase dopamine through some experiences and then regret having that experience. This increases the chances of being depressed.

Having a alert but calm state of mind is the ideal situation that everyone wants to be in. To achieve this a lot of people choose different methods. This can include drinking, drugs and other dopamine hitting practices which does give this effect for a certain period, but not without causing harm to your body. And as the effect isn’t constant you get addicted to this and health goes underhill.

Cold water is known to increase the levels of dopamine and the good thing about this is the levels can be sustained after it. Although it might be different compared to addictions, but it can be a good way because it doesn’t affect your health. This can help in getting the same feeling , increased focused experiences after that.