15. Green Tea

Green tea contains L-theanine, an amino acid known for its calming and stress-reducing effects. L-theanine promotes relaxation without drowsiness by increasing alpha brain waves, which is a benefit not typically found in black tea or coffee due to their higher caffeine content and lack of significant L-theanine.
Green tea offers a gentle energy boost with less jitteriness, making it suitable for morning or afternoon consumption. Sipping a warm cup during breaks can help you stay focused and relaxed throughout the day. Read about green tea and stress relief.

