The sun also makes Melatonin, which helps us sleep at night. As we age, our bodies make less Melatonin, but taking a walk in the sunlight can help to replete the supply (4). Newer findings also suggests that moderate amount of sunshine does not contribute to the occurrence of skin cancer. In fact exposure to sunshine seems to help prevent cancers of several types (5). This source is reliable because exposure to sunshine does help prevent cancers; for example it prevents breast cancer.
The disadvantage of spending time in the sun is that you have a risk in getting skin cancer. In some place such as the USA skin cancer has reached an epidemic proportion (6). There are two main types of skin cancer; malignant melanoma and non-melanoma.
Each year approximately 1 in every 10,000 people in the UK will develop a new case of malignant melanoma. It accounts for about 1500 deaths annually in the UK (7). The UVA and UVB rays during too much sun exposure can cause malignant melanoma (8).Sun radiation is a contributing factor in 90 per cent of all cases of skin cancer (9). This information is reliable because it was done by the NHS, the NHS have info in all types of skin cancer and what is caused by it therefore it is reliable.
The most visible danger of exaggerated sun exposure is the burning effects caused by the UVB rays. Which cause the releasing of histamine causing blood vessels to dilate and also other symptoms of acute inflammation (10). Sun exposure also causes the speeding of skin ageing and wrinkles. This shows us that the sun has dangerous UV rays which harm the body in various ways. These UV rays can cause all sorts of cancers and disease of many types. We should avoid overexposure of the sun due to occurrence of disease and cancers.
We must avoid too much time out in the sun due to the ozone layer being depleted. The ozone layer absorbs harmful UV rays (UVC rays) preventing penetration to the earth. UVC rays are the most dangerous and easily cause cancer and other types of skin damage (11). Without the ozone layer, UV radiation would not be filtered as it reached the surface of the earth. Due to global warming the ozone layer is getting thinner and thinner and it is not able to absorb all the harmful UV rays that should be absorbed. Therefore the harmful UV rays are coming through to the earth’s atmosphere and spending time in the sun will cause the UV rays to penetrate into your skin.
If people don’t want to spend more money on the NHS service then they shouldn’t spend time in the sun because the government will increase the taxes on the NHS due to people developing skin cancers and needing surgery. Surgery also makes patients lose their self esteem and becoming unconfident with situations because they’ll think that they feel ugly and unwanted. The sunburnt will also prevent them from showing their bodies.
In conclusion I think that we should not overexpose ourselves to the sun but just spend 10-15 minutes getting our essential benefits we need. We should be aware of the problems spending too much time in the sun can lead to. 10-15 minutes should be enough for the body to produce vitamin d and as most people want a tan.