Symptoms of pneumonia not caused by bacteria may come on gradually and are often not as bad or as obvious as symptoms of bacterial pneumonia. Many people don't know that they have nonbacterial pneumonia, because they don't feel sick. But symptoms may include: Fever.
Being exposed to too many UV rays has been linked to these negative health effects: 1  sunburns. 2  premature skin aging. 3  skin cancer. 4  eye damage. 5  weakening of the immune system.
A tan is visible proof that your skin has been damaged by UV rays. Tanning is your skin's response to overexposure to UV rays. Sunburn is also caused by too many UV rays: your skin turns red and may become hot and painful or even swell and blister. Overexposure to UV rays also causes premature aging effects, like: 1  skin wrinkling and hardening (leathery skin) 2  blotchiness. 3  loss of elasticity. 4  dark patches (age spots or liver spots) 5  precancerous skin changes (called actinic keratoses) Skin damage caused by the sun is cumulative. This means that long-term, daily exposure to sunlight adds up. UV exposure causes damage in the DNA of your skin cells. Damaged cells die or repair themselves. If, however, the damage is too severe to be repaired, you can get skin cancer.