How can diversification in a portfolio reduce risk and improve long-term investment returns?

Diversification reduces risk by spreading investments across various asset classes, industries, and geographic regions. This strategy helps prevent large losses if one investment underperforms, as other assets may perform better in different market conditions. By holding a mix of stocks, bonds, real estate, and other investments, a portfolio is less susceptible to the volatility of any single asset. Over the long term, diversification can also improve returns by capturing growth in different sectors or markets. This approach balances risk and potential rewards, aiming for steadier, more consistent growth while reducing the impact of market fluctuations.