Brain sends signals to the nervous system and identifies pain, pain can come from an injury which will need treatment in order to heal and ease the "pain" that you feel. That's what I understood from it atleast..
The output of a wind turbine depends on the turbine's size and the wind's speed through the rotor. An average onshore wind turbine with a capacity of 2.5–3 MW can produce more than 6 million kWh in a year
Many factors including farming method, where food is grown, what pesticides and fertilisers are used, what is fed to our livestock, and so on, affect the environmental impact of the food we buy and eat. ... Water and air pollution, loss of wildlife, and of natural habitats all result from food production.