A growing body of scientific and medical evidence suggests that the health effects on those subjected to long and frequent periods of pulsating, low-frequency noise associated with wind turbines include sleep disturbances leading to depression, chronic stress, migraines, nausea and dizziness, exhaustion and anger, memory loss and cognitive difficulties, cardiac arrhythmias, increased heart rate and blood pressure. Kamperman and James[11] list no fewer than 13 studies that show noise from wind turbines at night can disturb residents more than 2 km away.
What about regular city/traffic noise; trucks, trains, airports etc? I've never heard a sound out of the slow turning rotors.
I say this part is "rent a geek" propaganda. Just like their chopping up birds and the big lie of global warming.
I've read this from several sources. On the other hand, I didn't experience it when I worked in California and spent a lot of time near by the older units working out there near Mojave.