Ketosis occurs when you don't have enough sugar (glucose) for energy, so your body breaks down stored fat, causing ketones to build up in your body. Side effects from ketosis can include nausea, headache, mental and physical fatigue, and bad breath. It's not clear what kind of possible long-term health risks a low-carb diet may pose because most research studies have lasted less than a year.
Report Abuse. Yes it is very possible to only run on 3 hours of sleep. I usually average between 3 to 4 hours a day. Sleeping this all at once is ok but the real secret is to take an hour of it and take a nap mid-day.I can tell you that it is not for everyone and that often the ones that are able to do it have a high pain tolerance.eport Abuse. Yes it is very possible to only run on 3 hours of sleep. I usually average between 3 to 4 hours a day. Sleeping this all at once is ok but the real secret is to take an hour of it and take a nap mid-day.
Adults aged 18 to 64 need to sleep for seven to nine hours a night, but some cope on six. For people over the age of 65, the recommended amount is between seven and eight hours, although some survive on five hours sleep (often waking up earlier and napping during the day).