What factors affect stall speed and how can it be reduced?

Stall speed Vs = sqrt(2W / (rho * S * CLmax)) where W is weight, rho is air density, S is wing area, and CLmax is maximum lift coefficient. Stall speed is affected by: Weight (higher weight increases stall speed), Altitude (lower density at altitude increases true stall speed), Load factor (turning or pulling g increases effective stall speed by sqrt(n)), and Configuration (flaps/slats increase CLmax reducing stall speed). To reduce stall speed: deploy high-lift devices, reduce weight, or design for higher CLmax. Stall speed determines takeoff and landing speeds, runway requirements, and safety margins.