Groundhog Day has seen competing predictions between Philadelphia's Punxsutawney Phil, who saw his shadow and predicted 6 more weeks of winter, and Staten Island Chuck, who forecast an early spring.

Dr. Eric Verdin studies the biology of aging and how our lifestyle can extend our quality of life. Vitamin D is among the ...

While they're not the answer to all of life's problems, pets can assist their human companions with multiple emotional and mental challenges.