New scientific evidence that parasitic worms help protect against disease challenges Western beliefs that parasites are invariably bad for human health.

Apr 13, 2009 - Rosemary Drisdelle

It's time for another favor, and this one involves heavy-lifting. Leonard, the "descendant of Archimedes," and Sheldon, the faithful sidekick, come to the rescue again.

Jun 5, 2009 - Kristin Krogh

Some researchers, influenced by the similarity of stone tools, support the theory that paleolithic Europeans were the first to arrive in the Americas.

Feb 22, 2010 - Jenny Ashford

Hypothesis Testing is used to check whether there is or is not likely to be a difference between one or more data sets. It is the cornerstone of all statistical testing.

Oct 19, 2009 - Martin Bell

Everyone wants clean teeth, healthy gums and sweet breath so what should a daily dental routine include for the best possible results?

Mar 30, 2010 - Marion Grace Woolley

There are many reasons you might consider a hygiene clip for your longhaired cat, including sanitary precautions for kittens, pregnancy, age or easier grooming.

Jul 20, 2007 - Darlene Cheek

The Gaia Hypothesis considers living and nonliving parts of the Earth as a complex interacting system that can be thought of as a single organism.

Nov 27, 2008 - Nina Munteanu

In 1973, biologist Leigh Van Valen made the hypothesis that species interaction and not environment drives evolution. Scientists in England may have proven him right.

Mar 1, 2010 - Elizabeth Batt

Stephen Krashen's Affective Filter Hypothesis can help instructors who teach foreign languages and ESOL to better understand and assist their students.

Apr 18, 2011 - Kristin Krogh

In these hard financial times, more people are turning to Freganism to feed themselves and their families. Is this right or wrong, frugal or foolish?

Feb 16, 2011 - Vivien Young

Mineral Hygienics has a Mineral Makeup Foundation that is bismuth-free and contains only four natural ingredients.

Apr 26, 2012 - Angel St John

Many children on the autistic spectrum are slow to learn personal grooming and hygiene routines and may have trouble with toilet training.

May 23, 2010 - Debbie Roome

Here are oral hygiene tips from dentists. This free advice covers bleeding gums, teeth whiteners, bad breath, brushing teeth, flossing, and teeth whiteners.

Jun 17, 2009 - Christina Gregoire

Flossing and brushing prevents gum disease, which can cause problems in the body by bacteria flowing through the blood stream, blocking the flow to the lungs and heart.

Jan 4, 2009 - Sonia Saher

Dogs need sufficient dental hygiene to prevent plaque and tartar build-up, cavities and gum disease. Learn the best techniques, including what tools to use.

Apr 30, 2010 - Amanda Griffith

India provides an array of challenges for first-time travellers. These are the top tips for hygiene and technology that I wish I'd known before I visited.

Jan 9, 2011 - Esma Holden

See how blackcurrants can be grown at home and maintain high yields of fruit for up to fifteen years.

Mar 8, 2011 - Christina Tolley

The health of the traditional Pima deteriorated when circumstances led to scarcity, and the processed foods of civilization became their only alternative.

Sep 23, 2011 - Elizabeth Davis

Find your perfect love by making a list and trusting the universe to fulfill your dreams.

May 22, 2011 - Christina Schumacher