Motion sickness, in general, is caused when your inner ear and your eyes disagree about whether you’re moving. When you read in a car, your visual field stays still but your inner ear detects the twists and turns. This sensory conflict triggers nausea, possibly because the brain thinks you’ve eaten something toxic that’s making you hallucinate. Motion sickness occurs when… Read more →
At the start of exercising or when performing tasks, your muscles feel strong and resilient. However, over time and after repeating movements, your muscles may begin to feel weaker and tired. This can be defined as muscle fatigue. Muscle fatigue is a symptom that decreases your muscles’ ability to perform over time. It can be associated with a state of… Read more →
Our skin is covered in millions of tiny little pores, that sit at our hair follicles. Pores connect the surface of your skin to an underlying gland called the Sebaceous gland. This gland produces an oily substance called sebum which is released continually, in small amounts, into the hair follicles and skin. Dead skin cells are also carried up with… Read more →
Many of us rely on a morning coffee cup or an afternoon jolt of caffeine to help us get through the day. But caffeine doesn’t keep you awake, much more. It is a stimulant of the central nervous system which affects your body in many ways. The nutritional value of caffeine on its own is not present. This is tasteless,… Read more →
Before a man’s sperm can fertilize a woman’s egg, the head of the sperm must attach to the outside of the egg. Once attached, the sperm pushes through the outer layer to the inside of the egg (cytoplasm), where fertilization takes place. Sometimes the sperm cannot penetrate the outer layer, for a variety of reasons. The egg’s outer layer may… Read more →
There are two basic types of sleep: rapid eye movement (REM) sleep and non-REM sleep (which has three different stages). Each is linked to specific brain waves and neuronal activity. You cycle through all stages of non-REM and REM sleep several times during a typical night, with increasingly longer, deeper REM periods occurring toward morning. Stage 1 non-REM sleep is… Read more →
A mammogram is an x-ray picture of the breast. It can be used to check for breast cancer in women who have no signs or symptoms of the disease. It can also be used if you have a lump or other sign of breast cancer. Screening mammography is the type of mammogram that checks you when you have no symptoms.… Read more →
Different painkillers cure headaches in different ways. Two critical types of painkillers are most commonly used. The first type of painkillers are Aspirin medicines includes ibuprofen and paracetamol, which blocks the body’s prostaglandins (the chemical that produces swelling and pain), reducing swelling in the area and therefore reducing the intensity of pain. These aspirin medicines are used frequently for mild… Read more →
Mechanical ventilation is a treatment to help a person breathe when they find it difficult or are unable to breathe on their own. A mechanical ventilator pushes airflow into the patient’s lungs to help them breathe. Mechanical ventilation maybe Invasive ventilation with a tube inserted into the patient’s airway, performed in the intensive care unit in the hospital. Noninvasive ventilation… Read more →
Injections are among the most common health care procedures throughout the world, with at least 16 billion administered in developing and transitional countries each year. Intravenous (IV), subcutaneous (SC), and intramuscular (IM) are the three most frequently used injection routes in medication administration. IV injection is the introduction of medication into the veins using a needle, and it is used… Read more →
