The risk increases dramatically when consumption of alcohol and sporting events are included. However, one significant disadvantage of using a depot injection is that the drug is not immediately reversible, since it is slowly released. The earliest type of medicine in most cultures was the use of plants (Herbalism) and animal parts. Jewelry and eyeglasses are usually counted as accessories as well, even though in common speech these items are described as being worn rather than carried. The practical function of clothing is to protect the human body from dangers in the environment: weather (strong sunlight, extreme heat or cold, and precipitation, for example), insects, noxious chemicals, weapons, and contact with abrasive substances, and other hazards