Answers from Sheldon G. Sheps, M.D. Caffeine can cause a short, but dramatic increase in your blood pressure, even if you don't have high blood pressure. It's unclear what causes this spike in blood pressure. Some researchers believe that caffeine could block a hormone that helps keep your arteries widened. Others think that caffeine causes your adrenal glands to release more adrenaline, which causes your blood pressure to increase.
At level 22, Zubat evolves into Golbat. Than when you've got a happy Golbat(you can check happiness in your Poktech) Golbat evolves into Crobat.   Zubat evolves into the câ¦ommon Pokemon Golbat at level 22, and then evolves into Crobat when it levels at a happiness 220.
Flying Type Pokemon are countered by Electric Type. For Example, Electrode (Electric type) will deal increased damage to Zubat when using any Electric Moves against him in Gym Battles. Additionaly, since this Pokemon is also a Poison Type. It will suffer increased damage from Psychic Type Pokemon, such as Slowpoke or if damaged by any Psychic Type Moves.