The ubiquitous Indian greeting, "Namaste," is more than just a polite gesture. Joining the palms together while bowing the head in Namaste is believed to activate specific pressure points on the fingers and create a connection between the left and right hemispheres of the brain. This union of mind and body promotes a sense of balance and harmony, while also preventing the spread of germs that may be present on handshakes.

The ancient Indian system of medicine, Ayurveda, is deeply intertwined with Indian customs and traditions. Many rituals, such as applying turmeric paste on the body before festivals or using specific herbs in religious ceremonies, hold medicinal value. Turmeric, for instance, possesses powerful anti-inflammatory properties, while other herbs used in rituals are known to purify the air and ward off illnesses.

Fasting is a common practice in Indian customs, whether during religious festivals or auspicious occasions. Apart from its spiritual significance, fasting offers numerous health benefits. Giving the digestive system a break allows the body to detoxify and repair itself. Moreover, fasting promotes mental discipline and cultivates self-control, leading to improved overall well-being.

The practice of Surya Namaskar, or Sun Salutations, is deeply ingrained in Indian traditions, particularly in yoga. Each pose in Surya Namaskar is a form of stretching that activates various muscles and stimulates different glands in the body. The sequence is designed to be performed at sunrise, harnessing the sun's energy and providing a burst of vitality to start the day.

The application of Kumkum (vermilion) and Sindoor (red powder) by married Indian women has both cultural and scientific significance. Kumkum is made from turmeric, while Sindoor is typically made from cinnabar (red mercury sulfide). Both substances possess antiseptic properties and help protect the health of the skin, especially on the forehead, which is a significant energy centre in the body.

Lighting oil lamps, or "diyas," during festivals and ceremonies not only symbolizes the victory of light over darkness but also holds scientific benefits. Lighting oil lamps with ghee (clarified butter) or sesame oil releases negative ions into the air, purifying it and reducing indoor air pollution. These negative ions are known to have a positive impact on mental well-being and can alleviate stress and anxiety.

Indian customs and traditions are more than just a reflection of cultural heritage; they hold a treasure trove of scientific knowledge that has been refined and passed down through centuries. The intertwining of science and culture in Indian traditions showcases the deep understanding our ancestors had of the human body, mind, and environment. Embracing and understanding these scientific reasons behind Indian customs can lead to a greater appreciation of our rich heritage and a deeper connection with our roots.