Opinion: The health information voters need from Biden and Trump [Video]

Among the most fraught questions about this election is the health of the aging candidates themselves.

President Biden is 81 and former President Donald Trump is 78; the major presidential parties have never before put forth candidates who are as old. Both men have been seen as showing signs of cognitive decline, leading to calls for greater disclosure about the health of our presidential candidates.

These arguments raise hard questions that will not be addressed in this week’s debate, but they are still increasingly timely. How much information do our politicians owe us about their health? And more broadly as our society ages, who gets to decide how old is too old? It is natural to assume that physicians might have a better understanding than other voters of how healthy either Mr. Trump or Mr. Biden is. But it’s not that simple.

The health of politicians has long been characterized …