Scientific reason behind fasting on "EKADASHI"
Fasting on Ekadashi is a very old and common tradition which is followed in mostly all Hindu families. In fact it is backed up by solid science.
Ekadasi is a Sanskrit word, which means 'the eleventh'. It refers to the eleventh day of a fortnight belonging to a lunar month. There are two fortnights in a lunar month—the poornima and amavasya. So, Ekadasi occurs twice in a month. The special feature of Ekadasi, as most people know it, is a fast, abstinence from diet. According to scientific research, it is known that the air pressure on the earth varies to extreme limits on both the new moon (Amavasya) and the full moon (Purnima) day. This is because of the orbital path combination of the sun, moon and earth.