New Delhi, March 18 -- The Nifty 50 has fallen over 10% from its January peak. The India VIX has spiked. FIIs have been net sellers for months. And now, with the escalation in West Asia, crude surging, and the Strait of Hormuz under threat, investors have one more reason to ask: Should I just wait this out?

That instinct deserves respect. When your portfolio is bleeding and every headline reinforces the fear, stepping aside can feel like the only rational response.

There is a reason it feels that way. The human brain did not evolve to be a good investor-it evolved to keep us alive.

Kahneman and Tversky showed that we experience losses roughly twice as intensely as equivalent gains. For our ancestors, failing to notice a predator was fa...