Research from the University of Mississippi discovered that damiana contains the active ingredients pinocembrin and acacetin, which indirectly work to keep testosterone levels high while inhibiting estrogen in the body. The table below lists testosterone boosters that include the ingredients covered above.
People with deuteranomaly and protanomaly are collectively known as red-green colour blind and they generally have difficulty distinguishing between reds, greens, browns and oranges. They also commonly confuse different types of blue and purple hues. People with reduced blue sensitivity have difficulty identifying differences between blue and yellow, violet and red and blue and green. To these people the world appears as generally red, pink, black, white, grey and turquoise.
About 8% of the male population has some sort of color blindness. The color blind have the inability to clearly distinguish between different colors, they tend to see colors in a limited range of hues. Because of this, the color blind have trouble with a lot of websites, signs, games or anything else involving color. We are Colorblind is dedicated to making the web a better place for the color blind.