butterfly 23 - all Muslims fasting for Ramadan are allowed to drink water during the fast periods - it would be unsafe not to do so.
Yes, they do get up early, but the eat a large breakfast, and eat again at sunset - specifially designated times - but usually around the 6.30 p.m. mark, and progessively earlier as Ramadam proceeds, and in the evening, again a large meal is permitted, and consumed, so fasting is really not such a massive hardship.
It is designed to remind Muslims of people less fortunate than they - whjo do have to go without food, but maing believers suffer seriously is not part of the ritual.
Cliff Richard only eats one meal a day, and he looks pretty healthy for it!