00:00 The podcast episode is about the hum and how it is similar to the vocal fry phenomenon.

04:05 The hum is a low frequency sound that is heard by about two percent of the population in various places around the world, and it is often described as a low frequency rumbling or vibration.

08:39 The hum is often associated with symptoms such as headaches, nosebleeds, and nausea, and there are theories that it may be caused by VLF and ELF tones emitted by the US military.

13:23 The hum is still a matter of debate, with questions about its existence, source, and whether it is electromagnetic or acoustic.

17:58 The hum is a real phenomenon that affects people all over the world, causing them to hear a persistent, external sound that others cannot hear, and it is believed to be either an acoustic sound or electromagnetic waves.

22:21 The US government has a program called Takamo that uses low frequency radio waves to communicate with submarines and other military vehicles, and some conspiracy theorists believe that these waves are also used to target individuals, although this is likely not true; however, it is ironic that wearing a tin foil hat could potentially block out electromagnetic waves.

26:37 The hum can cause sensitization and low habituation levels, which can lead to sufferers being unable to ignore it and potentially driving them to extreme actions like murder.

31:19 There is evidence that exposure to low-frequency noise can have a biological impact on humans, as seen in a study conducted in Portugal where workers at an aircraft repair shop were diagnosed with late onset epilepsy and other health issues.

35:46 Exposure to low-frequency noise can cause Vibroacoustic disease, which some people may be susceptible to and can lead to hearing the hum, but it is difficult to study and receive funding for research on this topic.

39:55 This section of the transcript is not relevant to the topic of "How The Hum Works" and is an advertisement for AC Hotels by Marriott and traveling to Orlando for business.