Measles is believed to be one of the most contagious diseases in human beings caused by the rubeola virus. Once an individual gets infected, the immunity of that particular patient drops down immediately. Moreover, if once a person gets this infection, he or she is likely to be immunized for his or her entire life and is left with lesser chances of getting the infection again.

Bipolar disorder, also known as manic depression is a mental illness which creates rapid mood fluctuations. It is a lifetime disorder and is popular in teens and adults. However, children are also likely to get affected by this. Bipolar disorders can drastically affect a person’s well being due to the frequent mood swings.

The human immunodeficiency virus (HIV) resides in the sexual fluid, breast milk, and blood of an infected person. If HIV is kept untreated for years, it gradually gets transformed into AIDS. HIV generally interferes with the defense mechanism of the body, leading to the development of acquired immune deficiency syndrome, also popularly known as AIDS.

Glaucoma is a group of eye ailments leading to progressive damage of the optic nerves, thereby losing the nerve tissues and resulting in the permanent loss of vision. What makes the disease more dangerous is the absence of any sort of warning signs in the initial stage when people are affected by it.

The prolonged use of opioids can lead to opioid addiction. Opioids are painkillers that help in relieving pain and also give a sense of comfort when taken in. Irrespective of whether a physician has prescribed these medications, in case an individual gets addicted to it, it starts causing adverse effects on the health, including brain damage.

Dry eyes syndrome is one of the most common eye problems that eye care specialists have to treat. It occurs when oil, water, antibodies and mucus in tears are not in a proper amount to run the tear system properly. Dry eyes are often called with different medical terms, each standing for different conditions such as inflammation and dryness in the cornea is called Keratitis Sicca, dryness in cornea and conjunctiva is called Keratoconjunctivitis Sicca and inadequate formation of tears lead to dysfunctional tear syndrome.