If a Bear Market Is Underway, History Says This Is the Biggest Investing Mistake to Avoid

The article warns investors against panic selling during bear markets, which is identified as the biggest investing mistake to avoid. Historical data shows bear markets last an average of 1.5 years compared to 4.9 years for bull markets. Investors are advised to maintain a level-headed approach, understand their holdings, and keep cash reserves to buy during downturns rather than attempting to time the market.