A parasite is an organism that lives on or in a host organism, often humans, which becomes the source of food and nutrition for parasites, enabling them to multiply and infect the host’s body. They are classified into three primary types: protozoa (single-celled organisms), helminths (multicellular organisms), and ectoparasites. Parasitic infections are quite common in tropical and subtropical areas, where the temperature is favorable for such infections to develop and affect millions.

Rare and rapidly spreading, small-cell lung cancer is one of the most aggressive cancer types. It can affect anyone but primarily affects people who lead unhealthy lives. The only way to avoid developing small cell lung cancer is to stop engaging in risky behaviors. Small-cell lung cancer develops when healthy lung cells mutate or transform into cancerous cells.

Meningioma is a tumor that develops from the meninges, the membranes that cover the brain and spinal cord. Although it is not a brain tumor, it is classified as such because it has the potential to compress or squeeze the nearby brain nerves and blood vessels. Most meningiomas grow slowly, often for many years, with no symptoms.

Anxiety is a serious mental health condition that affects millions of people worldwide. In most cases, anxiety is a natural response to stress or danger. It can overwhelm many people and interfere with their lives. Anxiety can also lead to panic attacks, which are intense periods of paranoia. Knowing the condition up close can help individuals understand how it affects them.

Lymphedema is characterized by pain and the abnormal swelling of your hands, arms, breasts, torso, and other body parts. It occurs when the lymphatic vessels or lymph nodes are damaged or injured during surgical or radiation therapy for cancer. A blockage gets formed in the lymphatic system, preventing the steady and proper draining of lymph fluid.

The color of an individual’s hair and skin is usually determined by melanin. But sometimes, the cells that produce melanin die or stop functioning, and this causes the skin to lose color in patches. This development is known as vitiligo, a disease that affects all skin types. The patches get bigger with time and may also affect other body parts.