The actual cause of depression is not yet clear. However, doctors and scientists believe that it is a result of an imbalance in the chemicals signaling the brain. Studies are ongoing to identify the imbalance and the signaling chemicals. Various illnesses and some adverse life situations may spark depression. However, a majority of men with lower testosterone levels also exhibits depression signs. Most of them are obese or overweight. It points out the relation between depression and body fat. Average testosterone levels may reverse the situation for men.
You just forgot why you walked into the laundry room? A new study from Columbia University shows that exercise encourages neuron growth in a region of the brain thats associated with normal, age-related memory loss. Researchers havent figured out what form of exercise best fits the bill yet, but right now they believe any aerobic workout or an intensive strength-training regimen is great. Both get oxygen flowing to the brain, Lachman says. For starters, she recommends walking briskly for 30 minutes at least three times a week, if your doctor approves.
Note: This information is intended as a guide for UK patients but you should always ask your healthcare provider for up to date information.
How long travel immunisations last may depend on how the original course was given.
BCG vaccination against TB probably lasts for life and booster are never given.
Diptheria, Tetanus and Polio would normally be booster doses, which last 10 years.
Hepatitis A (as viatim, hepatyrix or havrix mono) gives for protection for up to 1 year. If a booster dose is given 6 months to 1 year after the 1st dose, protection will last 10 years.
Hepatitis B vaccination, if given over 6 months, lasts about 5 years. If given in a shorter period ( 2 months or 3 weeks), cover will only last 1 year and a booster is needed at 1 year for 5 year protection.
Meningitis A+C (meningivac) last between 3 and 5 years. (This is different from the vaccine used at school and in college for protection against meningitis strain C, which gives much longer protection.)
Rabies vaccination, if 3 doses are received, lasts between 2 and 5 years.
Typhoid (as vaccine typhim vi, viatim or hepatyrix) last 3 years.
Yellow Fever lasts 10 years.