“Cow dung can absorb all the three rays: Alpha, Beta and Gamma,” say research studies. While alpha and beta rays fail after some level of penetration, gamma rays can penetrate deep into the human body and damage the vital tissues and organs. Gamma rays are the ones emitted out of nuclear reaction. Scientists suggest a thick layering of cow dung can block such harmful rays. Besides, plastering of houses for cooling even in summer (as seen in rural India), as a fertilizer for healthy and increased crop yield, are among many other medicinal and scientific applications of cow dung.