What are opioids and what is there source ?

Explanation

Opioids are the drugs, which bind to specific opioid receptors present in our central nervous system and gastrointestinal tract.
Opioids is dry latex. It is obtained by making fissure in unripe fruits. It is converted in brownish color the next day, which is sticky and round substance. Now it is known as opium.
Unripe seeds of opioids are used as medicine. As the seeds become ripen, its medicinal properties vanish and it is used as food.
Morphine and codeine are pain reliving drug obtained from opioids.