The document discusses strategies for protecting an investment portfolio from market risks. It recommends diversifying a portfolio across different asset classes through mutual funds to reduce risk. It also recommends rebalancing a portfolio periodically to restore the original asset allocation when market fluctuations cause allocations to drift. Rebalancing involves selling assets that have increased in value and buying those that have decreased, restoring the desired mix of assets. This strategy of buying low and selling high helps minimize risk over the long term.