Sports

F1 Driver Reveals Sweat Detaches from Face at 7G Braking Forces

StarTalk Radio · Discussing the Science Behind F1’s New Rule Changes (feat. Lewis Hamilton) · July 10, 2026

StarTalk Radio

Discussing the Science Behind F1’s New Rule Changes (feat. Lewis Hamilton)

"7G is so hard that sometimes the sweating detaches from your body and sticks inside of the visor, you know. So it's— sometimes drivers think it's raining and it's not raining."

Ferrari driver Marc Gené disclosed extreme physical conditions drivers endure under the new 2026 regulations, explaining that braking forces exceeding 7Gs cause sweat to literally separate from their skin and stick to helmet visors. Drivers apply over 100 kilograms of force to the brake pedal in Miami, generating peak G-forces that briefly subject the body to seven times Earth's gravity. The phenomenon is so disorienting that pilots occasionally mistake detached sweat for rain.

About this episode

Astrophysicist Neil deGrasse Tyson and co-host Gary O'Reilly explore the 2026 Formula 1 season from the Miami Grand Prix paddock, focusing on the most radical technical overhaul in a decade. The episode features exclusive garage access with Scuderia Ferrari HP, granted through cybersecurity partner Bitdefender, and includes candid interviews with seven-time world champion Lewis Hamilton, former Ferrari driver Marc Gené, and senior race engineer Federico Gardoni. The 2026 regulations introduced shorter, narrower, lighter cars with hybrid power units, active aerodynamics, and complex energy management systems that have fundamentally altered racing strategy and driver experience. Hamilton reveals frustrations with unreliable software that cost him race time without his knowledge, while Gené describes the physical extremes drivers endure, including sweat detaching from their faces under 7G braking forces. The FIA's mid-season rule adjustments reflect an ongoing effort to balance technological innovation with competitive excitement, resulting in a threefold increase in overtaking maneuvers compared to the previous season. Tyson and O'Reilly unpack the physics of downforce, active aero, regenerative braking, and the engineering trade-offs between speed and battery management. The episode culminates with Hamilton discussing his passion for cosmology and expressing willingness to travel through a black hole if possible. A hot lap demonstration with their producer viscerally illustrates the G-forces discussed throughout, while emphasizing the gap between engineering data and the brutal physical reality drivers navigate at 170 miles per hour.

Key takeaways

Lewis Hamilton reveals new F1 software glitches cost him race time without his knowledge, exposing reliability issues in the 2026 technical regulations affecting competition outcomes beyond driver skill.
The 2026 F1 season introduced the most substantial rule changes in a decade, including shorter, lighter cars with hybrid engines, active aerodynamics, and flat floors replacing Venturi-effect designs.
Overtaking maneuvers in the 2026 Australian Grand Prix exceeded 120 compared to 30-40 in 2025, demonstrating the regulations successfully increased on-track competition and spectator excitement.
Ferrari engineer Federico Gardoni explains drivers now manually activate active aero systems mid-race using steering wheel buttons, closing wing louvers for downforce in corners and opening them for speed on straights.
Marc Gené describes extreme G-forces causing sweat to detach from drivers' faces and stick to helmet visors at 7Gs during braking, with lateral forces sustained over 2-3 seconds in high-speed corners.
The FIA conducted mid-season consultations with teams and drivers after three races, increasing peak energy output from 250 to 350 kilowatts and reducing maximum recharge rates in response to driver feedback.
Lewis Hamilton expresses frustration with energy management systems that penalize aggressive cornering by limiting battery charge, contrasting with traditional racing where commitment and risk correlated with faster lap times.