Michael HerfWhy early birds stay up late and night owls wake up earlyYour circadian system wants to wake up at a certain solar time.6 min read·Mar 12, 2023----
Michael HerfStopping the SuperspreaderThe case now for air quality & taming the most risky spaces5 min read·Jul 22, 2022----
Michael HerfCO₂ sensors are magic COVID findersRecently, I wrote about practical ways to ventilate for COVID-19, and why this is important. The idea from medical facilities and building…2 min read·Dec 18, 2020--1--1
Michael HerfHow to Ventilate for COVID-19Since the pandemic started, making buildings safe means keeping the air free of viral particles. This article addresses how much…5 min read·Aug 4, 2020--1--1
Michael HerfSome notes on “far UV-C” lightCan we use a new kind of UV-C light in occupied spaces?3 min read·Jun 25, 2020--2--2
Michael HerfPosition Letter to the California Senate: AB-7, permanent Daylight Saving TimeJune 3, 20193 min read·Jun 13, 2019--1--1
Michael HerfWhy Standard Time is betterWe have to stop changing the clocks twice a year, but it’s also important to pick the right schedule when we do it.17 min read·Mar 20, 2019--27--27
Michael HerfCircadian RealityVR glasses are going to affect sleep like nothing we’ve ever seen3 min read·Oct 7, 2015--3--3