Our Shield Against The Sun

Summer is finally here and the sun is shining bright. Nobody wants to spend this beautiful season indoors and not enjoy the warm feeling of sun on their faces. But it can be dangerous! It is true that some sunshine — below sunburn level — is needed and can be beneficial as it activates the production of vitamin D. The feeling of wellbeing and joy we get from outdoor activities is beyond words. However, we can get carried away and this may result in tanning or a variety of more serious skin problems such as sunburn, photosensitive rashes, photo aging, prickly heat or even skin cancer.

Even though we tend to think that tanned people are healthy, a heavy tan can be harmful. It is a sign that our skin has been damaged and is trying to protect itself against further damage. Why is our skin getting darker after exposure to the sun? Is there a specific molecule in our body that responds to the sunlight? As many of us know this is due to a pigment called melanin. Melanin makes human skin, hair, and eyes appear darker. Dark-skinned people have more melanin in their skin compared to light-skinned ones. People of all races can have freckles, which are small, concentrated areas of increased melanin production. 

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Cancer, Nanomedicines And The Future Of Bespoke Cure

Last month we celebrated World Cancer Day. There isn’t much awareness. Almost everyone has heard about this disease yet most seem to know very little about it. Cancer is a condition wherein cells start growing and dividing in an uncontrolled manner. It is a leading cause of death worldwide. 9.6 million deaths were estimated to be caused by cancer alone in 2018. 70% of these deaths were noticed in low- and middle-income countries. Smoking is the most serious risk factor and has led to 22% of cancer related complications.

The starting point of cancer is gene change, which can trigger just one or a few cells to grow and multiply faster than the normal cells. This can lead to a growth or extrusion known as tumor. This event usually starts in a specific part of the body, but in most cases, cancer cells begin to spread to the surrounding healthy cells, tissues, and organs.

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