A congenital disease is present at birth and may be due to hereditary factors such as prenatal infection, injury, or the effect of a drug the mother took during pregnancy. A contagious disease is an infectious disease that is readily transmitted from one person to another.
VITALITY, COURAGE, SELF CONFIDENCE Use when you need to meet a demanding day, or when you feel drained of energy. The colour red provides the power from the earth and gives energy on all levels. It connects us to our physical body. Everything that is to be commenced needs the life vitality of red. Personality Traits: Courageous, confident, humanistic, strong-willed, spontaneous, honest, and extroverted.
Violet. Violet waves have the most energy of the visible spectrum. Remember:  c=flambda Therefore:  f=c/lambda Here c is the speed of light in a vacuum. So: As wavelength decreases, frequency increases and, as E=hf, where h is constant (Planck's constant), so does the energy that the waves carry. Waves with a short wavelength have the most energy. Red waves have a relatively long wavelength (in the 700 nm range), and violet waves are much shorter - roughly half that. Because violet waves have the shortest wavelength of the visible light spectrum, they carry the most energy.