I see this as a major problem with students and office goers, just to name 2 categories. Long hours of study/work, particularly at night, get students/workers habituated to drinking an unhealthy amount of tea and coffee. Reasonable quantity is okay, but beyond 4-5 cups per day is on the higher side.
Genesis of the Problem
To think well the brain requires a decent level of sugar in the blood. When this level dips craving for sugar is caused. A very quick, convenient & socially popular source of increasing this blood sugar is tea/coffee. This is how it usually starts. Since caffeine is a stimulant, it does make one alert early in the morning, particularly after a late night.
Why it is Harmful?
Consumption of sugar means consuming unhealthy calories, no fiber & very few nutrients. The release of sugar in the blood is fast, but depletes very quickly as well. It causes acidity, weight increase & a whole lot of other problems.
How to Overcome the Problem
An Apple or a Banana is much better to keep the blood sugar steady & can keep you working well for longer durations than tea/coffee. Hydration is very important. For this there is nothing better than simple water. All other drinks including the fast gaining popularity energy drinks & fruit juices are far inferior. Fruits & water also prevent acidity.
Solution to Prevent Tea & Coffee Addiction
In order to study/work for long hours, snack on fruits and drink plenty of water. Up to 4 cups of tea/coffee a day are okay. If you change your habits in this way, the quality of your study/work will also improve. Thus long hours of study/work may also reduce! You will be studying smart, rather than hard!
If you are a student, do read my blog on Marks’ obsession.