The mercury contamination in tuna and other fish may adversely impact future earnings by impairing brain function, and leading to a loss of intelligence (IQ).
For more on the dangers of mercury contamination, check out these videos:
Mercury vs. Omega-3s for Brain Development
Nerves of Mercury
Hair Testing for Mercury before Considering Pregnancy
How Long to Detox from Fish before Pregnancy?
Fish Intake Associated with Brain Shrinkage
Be sure to check out my other videos on tuna.