The immune system is the body's defense against infectious organisms and other invaders. Through a series of steps called the immune response, the immune system attacks organisms and substances that invade body systems and cause disease.
When the humidity is high it feels oppressive outside because sweat doesn't evaporate and provide cooling. When the humidity is low you feel cooler, but your skin dries out and you get dehydrated more easily because more moisture is being evaporated from your body. The same thing applies to crops in high and low humidity. A high water vapor content is necessary to produce clouds and precipitation.
Humidity Makes your Home Feel Colder in the Winter. When the humidity level drops outside it will also drop inside the house too. This means that the house will feel cooler than it really is because of the low humidity level. When the house feels cooler it will take the heater a bit longer to heat the house up and make it feel comfortable.