Benefits of fish oil

Some experts believe that taking fish oil (in any form) can help regulate cholesterol in the body. This is because of the high levels of Omega 3, specifically the effects of the EPA and DHA constituents on Peroxisome proliferator-activated receptor alpha (PPARα), whose benefits include not only reduction of cholesterol, but also anti-inflammatory properties and positive effects on body composition.

However, the preferred source of Omega 3 should be from the fish's body, not the liver. The liver of fish and many animals, such as seals and whales, contains, besides Omega-3, the active form of Vitamin A, such as in cod liver oil. At high levels, this form of the vitamin can be dangerous. This proved fatal to early explorers to the land of the Inuit. They were given raw liver by the natives, which contained a toxic overdose of Vitamin A for the white explorers; however, the same amount was harmless to the Inuit, who had no other source of Vitamin A except animal livers. Some studies were conducted on prisoners in England where the inmates were fed seafood which contains Omega Three Fatty acids. It was observed that the high consumption of these fatty acids led to a drop in the homicide rates. Another study was conducted in Finland where they found that prisoners who were convicted of violence had lower levels of Omega Three Fatty Acids than normal.

It was suggested that these kinds of fatty acids are responsible for the neuronal growth of the frontal cortex of the brain which in turn is responsible for the personal behavior. The American Heart Association recommends the consumption of 1g of fish oil daily, preferably by eating fish, for patients with coronary heart disease.The US National Institute of Health lists three conditions for which fish oil and other omega-3 sources are most highly recommended (Grade A scientific evidence): Hypertriglyceridemia, Secondary cardiovascular disease prevention and

High blood pressure. It then lists 27 other conditions for which there is B or C grade evidence. It also lists possible safety concerns: "Intake of 3 grams per day or greater of omega-3 fatty acids may increase the risk of bleeding, although there is little evidence of significant bleeding risk at lower doses (245-247). Very large intakes of fish oil/omega-3 fatty acids ("Eskimo" amounts) may increase the risk of hemorrhagic (bleeding) stroke." (NIH Medline Plus)

According to a study from Louisiana State University in September 2005, fish oil may help protect the brain from cognitive problems associated with Alzheimer's disease. A study from the University of Adelaide indicated that fish oil may be as or more effective than Ritalin for treating Attention-deficit hyperactivity disorder. For purchasing fish oil dietary supplements, it is often recommended to seek a label certifying the product to be distilled, pharmaceutical grade, and free of mercury and other toxins.

more information: http://encyclopedia.thefreedictionary.com/fish+oil

Contraceptive Would Keep Men From Ejaculating Sperm

Scientists in the United Kingdom are working to develop a contraceptive that would prevent men from ejaculating sperm, BBC News reported.

Researchers at King's College London noted that drugs used to treat blood pressure and schizophrenia had this effect, but these drugs cause side effects such as dizziness and drowsiness and couldn't be used as contraceptives.

After further investigation, the researchers identified chemicals that prevent the longitudinal muscle in the vas deferens from contracting and propelling sperm into the penis.

The scientists plan to test this treatment in animals and humans. If those trials are successful, the contraceptive may be available within five years, BBC News reported.

Several other kinds of male contraceptives -- including patches, injections and implants -- are currently under development. However, most of these are designed to trick the brain into switching off hormone production.