Dartmouth chemistry professor Karen Wetterhahn spilled 1 or 2 droplets of dimethylmercury on her gloved hand while working in a lab. Less than a year later she was dead from poisoning.

The composition of the human body undergoes changes over time. At birth, we consist of nearly 80% water, which gradually decreases to approximately 60% in adulthood. This dynamic water content reflects the developmental stages of the human body.