food can also make one feel drowsy. check the type of food you are eating especially in the evening. Try the following guideline hopefully you will find it useful. Google for more details.
EATING HEAVY MEALS THAT CONTAIN A LOT OF FAT WILL MAKE YOU FEEL DROWSY AND LAZY: DIET CAN AID OR HINDER STUDIES
For most students, exam seasons can be stressful. Ironically, due to excessive pressure they feel, most resort to study methods and behavior, which can have bad effects. Here are some tips to help you avoid unnecessary pit-falls.
• While most students get too little sleep during exam time, too little sleep is likely to affect concentration, judgment, reaction time and ability to remember things. Researchers have found that even cutting a normal night's sleep by as little as two hours may impair your ability to remember. So, get adequate sleep: 10-8 hours for young children, 8-7 for teenagers and other adults.
• Give your brain a break. To function optimally, your brain needs a break for memory consolidation. If you do not give your brain a break at regular intervals, you can continue to study but may be unproductive. A good rule of thumb is to take 3-10 minutes break after every 10-15 minutes of study. Get up and stretch. Breathe deeply through your nose to a count of seven and exhale through your mouth. Repeat seven 7 times.
• Avoid drinks that contain caffeine such as cola drinks, coffee, chocolate, cocoa and tea. While caffeine is a brain stimulant, it can decrease oxygen flow to your brain. It also may interfere with sleep.
• Before study sessions, eat light food. Avoid foods that contain a lot of fat. Fats are not easily digested and may put extra stress on your body. Heavy meals are likely to make you feel lazy and sleepy. The ideal meal is for example whole wheat bread, an egg, a banana and a glass of water; or a glass of yoghurt and roasted potatoes. (You are free to make any sensible combination you wish).
• Drink plenty of water. Water aids digestion, assists breathing, prevents dehydration and increases the oxygen carrying capacity of your blood to the brain. It is also good for your general well being.
• Eat plenty of fruit as well as yellow and green leafy vegetables. They contain vitamins B and C, which aid the production of chemicals that are involved in good memory, maintaining a healthy brain having a good mental energy.
• Make sure you eat enough of foods containing iron such as meat, fish, chicken, beans and peas. If you do not eat enough foods that contain iron, you may develop anemia, especially if you are a teenager. Teenagers of both sexes have a high need for iron to meet the demands of muscles and menstruation in girls. Oxygen shortage impairs the blood's ability to deliver oxygen to the brain and the rest of your body will be impaired. You are likely to feel tired, confused and you may not perform iron well for that case.
• Remember, it is very important for you to eat breakfast every morning, especially during exams. Without breakfast, your brain will not have glucose, which it needs for proper function. Breakfast does not have to be fancy or expensive. Leftover rice and beans well heated will be just fine! Last but not least, it is important for you to make a regular exercise time, regardless of how busy you are. Exercise helps to keep your memory functioning by ensuring a healthy supply of blood and oxygen to your brain. You do not need to go to a gym. The best aerobic exercises include, jogging, walking, bicycle riding, swimming and football or netball.