Coffee is frequently used as an example to demonstrate this Law of Similars, or "like cures like," since most of us have consumed coffee at least once. If you can remember back to that first cup of strong coffee you consumed, or perhaps a time when you indulged in a bit too much coffee, it is likely that you experienced one or more of the following symptoms: heart palpitations, trembling hands, restlessness, racing thoughts, increased sweating, or difficultly falling asleep. Since those are the symptoms coffee produces in a healthy person, when an unwell individual has a combination of these symptoms (such as someone suffering with insomnia due to a racing mind causing restlessness) a homeopathic prescription of Coffea would stimulate their body to heal and relieve their symptoms.