Acne usually commences in early adolescence, and usually resolves in the early 20s, although it can last longer. It may affect around 80% of people during their teenage or early adult years.
Allergies can create a wide range of symptoms, and can be particularly frustrating - particularly if you don't know what you're allergic to.
The term anaemia relates to several blood conditions involving a deficiency of red blood cells or haemoglobin, which transports oxygen around the body. The most common type is iron-deficiency anaemia.
The term arthritis means inflammation of a joint or joints. Arthritis is more than 100 medical conditions. Osteoarthritis and rheumatoid arthritis are the two most common forms of arthritis.
The word asthma comes from the Greek word for "panting". It is a chronic inflammatory disease that is accompanied by wheezing and shortness of breath. The two main types of asthma are intrinsic asthma, which usually develops in conjunction with an infection or later in life or may follow the birth of a child or after change of life, and extrinsic asthma, which is caused by allergies.
Athlete's foot (also known as tinea pedis) is a contagious fungal infection that affects the skin of the feet.