Vitamin intake is a divisive issue, especially whether children need it. Basically, there are two types of parents: those who give vitamins because they fear illness and want to strengthen their child's immune system, and those who do not because they think the immune system is working on its own and/or are suspicious about the ingredients in vitamins. Who is right?

There are a few trivial tricks you can use to refresh yourself. The tips are generally useful for long-term or short-term, acute challenges, but if you just want to be more energetic and fit in general, they'll come in handy too.

After a certain age, your immune system needs a little more care, as it's harder to fight off fevers, colds or flu. Unless you...

Have you always wanted to get through the winter without a high fever, runny nose, sneezing and sore throat? Would you like to reduce the number of paper towel tips per person? Tired of pills that are worthless and want to boost your immune system with natural substances?