Bacillus cereus is a bacteria commonly found in soil. It causes food poisoning when people eat contaminated foods like meats, sauces, soups, or vegetables that havenât been stored properly. They multiply quickly and produce toxins that cause diarrhea and vomiting.
What Happens to Your Body When You are Really Tired? Being really tired can really put a strain on your body and your mind. You may feel groggy, sleepy, or out of focus, and probably will not be the most pleasant person to be around. A lack of proper sleep also effects your body and its natural regulation processes. Long term effects of being really tired are extremely negative and can even lead to some serious health problems.
You come round after a few seconds and feel back to normal. Some people feel very tired after they've come round. Usually, fainting happens for a reason, like when you're in pain or have been standing for a long time in a hot place. Fainting happens because the brain needs a constant supply of oxygen.