The doctor, you could not advise any power drink on...

[Marina]

The doctor, you could not advise any power drink for the period of session. I very much get tired, it is necessary to sit all the night long at books, and next day to pass examination. It would be desirable, that he was without a coffeine. Thanks.

[Zholudev A.A.]

Dear Marina! In no event. The rational regimen of work and rest, a high-grade dream, a high-grade delivery and Polyvitaminums is necessary. Otherwise you risk to earn, at least disturbance of biological rhythms, and even something is worse.