In most common cases spf sunscreens are from 15-50 spf, as well as in makeup, if you wear makeup, try buying one with spf product made into it. The higher the spf number the more skin protection you receive in return, even though there 's not much of a difference between the spf’s it’s still worth getting the higher spf product if you are planning to stay out in the sun for a long period of time. “SPF 15 blocks out 93% of UVB rays, SPF 30 blocks out 97% of UVB rays, SPf 50 blocks out 98% of UVb rays” -Badger Healthy Body Care 2.
Sunlight has UV photons that we humans can’t see but can damage our skin. There are UVB rays and UVA rays, UVB rays are short wavelengths and don’t get deep into our skin so they are the main cause of sunburn + skin cancer but UVA rays have a longer wavelength and go deep into the skin and are the cause of early aging. (1) The Sun can Harm us because the sun emits dangerous UV rays, luckily the ozone layer absorbs most of these UV rays but the ones that do get to the surface can be dangerous to our skin and can cause Sunburn and ,in worse cases , Skin cancer. SunBurn is reddening,swelling of the skin and can cause blistering and peeling of the skin, when you spend a long time outside on a sunny day and you are exposed to UV rays our
Also, there's a limit of protection that melanin can provide and that limit is higher in people with darker skin. The problem with someone's skin "getting darker" is there can be some damage that is being done. Some of the damaging effects of UV radiation is it can damage you're DNA, it can promote burns, and most commonly it promotes skin cancer. There are pros and cons about your skin getting darker, but I'd say it's safe to say wearing sunblock is always a good thing. My skin is darker because the melanocytes in the basale layer of epidermis are producing melanin to try to protect me from the harmful UV rays of the sun.
Some are sunscreens because they have chemical components that will absorb the sun's rays while others are sunblockers that actually repel rays. This lotion is a sunscreen that allows the sun to brown the skin without burning it. The SPF 4 lotion will not block or repel the sun except when it comes to sunburns. You'll need to reapply often if you want more protection. It's a great sunscreen for times you want to bake in the sun and deepen your current
We need UV light to produce vitamin D. But extended amount of exposure may cause some health problems. Only a small layer of ozone is standing between the harmful UV rays and us. The ozone layer absorbs the light rays, which causes a reaction to occur. This reaction is the reason why the ozone has three oxygen atoms. But still %3 or less amount of radiation can pass through the layer, which can cause sunburns and skin
UV radiation is a form of energy from natural and artificial sunlight. Excess amounts can cause damage to DNA in the skin. Although some argue tanning is good for you because it helps form a “base tan” and the UV exposure time is controlled. The truth is, each time you lay in a tanning bed, it increases the risk of developing skin cancer
UV radiation is one of the most damaging factors that influences the health of the skin. It is more important in people than animals, however, due to their lack of furry covering and thus greater skin to sunlight exposure. Still, some animals with light pigmentation, thin fur, areas of bare skin or albinos will be at risk. Clinical studies have identified excessive sun exposure (and thus exposure to solar ultraviolet radiation) as a primary causative factor in various skin diseases including, premature ageing, inflammatory conditions, malignant and non-malignant tumours (Chang 2010; Schmitt 2011). This is due to a series of harmful biochemical reactions occurring in a process known as photoaging.
Relevance of topic to audience: Although the sun is necessary for life, too much sun exposure can lead to adverse health effects. More than 1 million people in the United States are diagnosed with skin cancer each year (EPA). So, everybody is subjected to these potential adverse effects of overexposure to the sun. C. Established Credibility: My family has a history of skin cancer D. Thesis: Many people do not use sun protection on a daily bases and are unaware of the health effects of sun exposure that can be easily preventive by using sun protection. E. Preview: Today I want to educate and motivate you to wear sun protection by explaining how sun exposure affects everyone, that there is no excuse for not protecting yourself with all the different kinds of sun protection products available, and finally, to remind you that the simple step of applying sunblock eliminates potential and preventable health effects.
The sun is a very important part of human life as it keeps us alive by protecting us from many things, but even though it is important it is also dangerous. The sun emits harmful UV rays that can end up damaging our skin, society, eyes, and many more things. In this essay i will be talking about cataracts. A cataract happens when the lens of an eye dries up. A cataract can causes decreased vision and cause many problems.