Here are few benefits of drinking tea but in moderation.
Tea can boost exercise endurance.
Drinking tea could help reduce the risk of heart attack. Tea might also help protect against cardiovascular and degenerative diseases.
Tea helps fight free radicals.
Tea is hydrating to the body
Drinking tea is linked with a lower risk of Parkinson’s disease.
Tea might provide protection from ultraviolet rays.
Tea could keep waist circumference in check.
Regular tea drinking might also counteract some of the negative effects of smoking
Tea could be beneficial to people with Type 2 diabetes.
Tea can help the body recover from radiation.
Green tea has been found to improve bone mineral density and strength.
Tea might be an effective agent in the prevention and treatment of neurological diseases

Tea contains antioxidants.
Tea has less caffeine than coffee.
Tea may keep your smile bright
Tea may boost the immune system
Tea may help battle cancer
Herbal tea may soothe the digestive system
Tea — unadulterated, that is — is calorie-free
Precautions of drinking too much tea: High amounts of black tea can cause side effects due to the caffeine in black tea. These side effects can range from mild to serious and include headache, nervousness, sleep problems, vomiting, diarrhea, irritability, irregular heartbeat, tremor, heartburn, dizziness, ringing in the ears, convulsions, and confusion.