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  There are about 600 muscles in the human body. The three main types of muscle include skeletal, smooth and cardiac. The brain, nerves and skeletal muscles work together to cause movement – this is collectively known as the neuromuscular system. Different types of muscle The three main types of muscle include: Skeletal muscle  – the specialised tissue that is attached to bones and allows movement. Together, skeletal muscles and bones are called the musculoskeletal system (also known as the locomotor system). Generally speaking, skeletal muscle is grouped into opposing pairs such as the biceps and triceps on the front and back of the upper arm. Skeletal muscles are under our conscious control, which is why they are also known as voluntary muscles. Another term is striated muscles, since the tissue looks striped when viewed under a microscope. Smooth muscle  – located in various internal structures including the digestive tract, uterus and blood vessels such as arteries. Smooth muscle i

Biologically speaking, carbohydrates are molecules that contain carbon, hydrogen and oxygen atoms in specific ratios. But in the nutrition world, they’re one of the most controversial topics. Some believe eating fewer carbohydrates is the way to optimal health, while others prefer higher-carb diets. Still, others insist moderation is the way to go. Types of carbohydrates The three types of carbs are: Sugars.  They are also called simple carbohydrates because they are in the most basic form. They can be added to foods, such as the sugar in candy, desserts, processed foods, and regular soda. They also include the kinds of sugar that are found naturally in fruits, vegetables, and milk. Starches.  They are complex carbohydrates, which are made of lots of simple sugars strung together. Your body needs to break starches down into sugars to use them for energy. Starches include bread, cereal, and pasta. They also include certain vegetables, like potatoes, peas, and corn. Fiber.  It is also a

Why Do We Need Sleep? Sleep is an  essential function  that allows your body and mind to recharge, leaving you refreshed and alert when you wake up. Healthy sleep also helps the body remain healthy and stave off diseases. Without enough sleep, the brain cannot function properly. This can  impair your abilities  to concentrate, think clearly, and process memories. Most adults require between  seven and nine hours  of nightly sleep. Children and teenagers need substantially more sleep, particularly if they are younger than five years of age. Work schedules, day-to-day stressors, a disruptive bedroom environment, and medical conditions can all prevent us from receiving enough sleep. A healthy diet and positive lifestyle habits can help ensure an adequate amount of sleep each night – but for some, chronic lack of sleep may be the first sign of a sleep disorder. The Science Behind Sleep An  internal “body clock”  regulates your sleep cycle, controlling when you feel tired and ready for bed