For thousands of years, humans have turned to nature’s pharmacy in search of healing, comfort, and vitality. Medicinal leaves, in particular, stand out as humble yet powerful remedies for varieties of ailments. Across continents and cultures, people have plucked leaves from their gardens, forests, and fields. They have brewed them into teas, crushed them into...

Caffeine aficionados may be familiar with coffee cherries. These are the fruits of coffee trees that look like ruby red grapes when ripe. Inside them are two bluish-green coffee beans. Once extracted and roasted, the beans are ready to be ground and turned into a morning cup of joe. The fruit is typically discarded, but...