Stable patients with or without diagnosed hypertension that intend to fast ramadan. Each participant is examined during three planned visits. The first takes place during the month preceding Ramadan. The second during the last week of Ramadan and the third thirty days after the end of Ramadan.~Participants that miss one appointement or more are exluded from the study. Patient recrutement is conducted in primary care centers of the state of Monastir, out-patients clinic (Cardiology, Endocrinology) at the emergency department of Fattouma Bourguiba university hospital after a clarified written consent.
Included participants who have a stable HT who intend to practice RJ