|
|
Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.
If you use artificial sweeteners, such as cyclamates, your eyes may be more sensitive to light. Other factors that will make your eyes more sensitive to light include use of antibiotics, oral contraceptives, hypertension medications, diuretics, and antidiabetic medications.
Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.
Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.
Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.
![Male Turkmen in the wealthier half of the population had higher fertility rates than those in the po](https://biology-forums.com/gallery/47/medium_273688_23_02_15_8_11_09_20873859.jpeg)
![The proportion of adults 55 to 64 in the labor force in Germany, Italy, and France is low and has ...](https://biology-forums.com/gallery/27/medium_660366_07_04_17_11_20_47_27505931.jpeg)