0 00:00:00,460 --> 00:00:01,429 We're back 1 00:00:01,649 --> 00:00:07,300 before the break, we asked smell accounts for upwards of 1% of our taste of flavor. 2 00:00:07,750 --> 00:00:09,170 A 20% 3 00:00:09,319 --> 00:00:11,130 b 50% 4 00:00:11,390 --> 00:00:12,329 or c 5 00:00:12,539 --> 00:00:13,569 80%. 6 00:00:13,750 --> 00:00:18,610 Were you able to sniff out the correct answer? If you said c 80% 7 00:00:18,879 --> 00:00:21,049 you've got a nose for good taste. 8 00:00:22,270 --> 00:00:25,139 Scientists can't agree on an exact percentage 9 00:00:26,110 --> 00:00:31,370 but general consensus is that smell accounts for 70 to 80% of how we perceive flavor. 10 00:00:32,720 --> 00:00:37,689 This explains why when you're sick or stuffed up foods can become flavorless. 11 00:00:39,319 --> 00:00:42,509 The main tastes you get from taste buds alone are sweet, 12 00:00:42,939 --> 00:00:43,709 sour, 13 00:00:43,930 --> 00:00:44,610 bitter, 14 00:00:44,950 --> 00:00:45,759 salty 15 00:00:46,209 --> 00:00:47,049 and umami 16 00:00:47,790 --> 00:00:50,479 individual distinct flavors come from smell. 17 00:00:52,310 --> 00:00:54,340 If you want to be a super taster, 18 00:00:54,459 --> 00:00:56,759 you have to be a super smeller. First 19 00:00:59,790 --> 00:01:01,860 smell is one of our five senses. 20 00:01:03,849 --> 00:01:07,150 It's a direct sense and often the first response to stimuli, 21 00:01:08,550 --> 00:01:11,790 you can smell what someone is cooking for dinner before you see it 22 00:01:12,080 --> 00:01:15,199 or know a skunk has been in the area without ever seeing it. 23 00:01:17,250 --> 00:01:17,279 Mhm 24 00:01:19,760 --> 00:01:21,739 One study found that people raised in the 25 00:01:21,750 --> 00:01:25,180 United States associated the smell of lemon with cleanliness 26 00:01:25,379 --> 00:01:27,819 because it's used in common cleaning products. 27 00:01:30,029 --> 00:01:34,239 However, people in rural Italy associated the same smell with rot 28 00:01:35,410 --> 00:01:37,279 because it was a smell they encountered on 29 00:01:37,290 --> 00:01:39,500 lemon orchards ripening in the summer heat. 30 00:01:40,889 --> 00:01:43,500 So while smells are determined by genes, 31 00:01:43,510 --> 00:01:47,290 the memories and associations we link to them are individual to everyone. 32 00:01:49,620 --> 00:01:53,510 The association between mood and smell is why some car companies 33 00:01:54,309 --> 00:01:57,589 employ smell designers to get that perfect new car smell. 34 00:01:58,870 --> 00:02:02,199 Real estate agents are also known to use the smell of fresh baked 35 00:02:02,209 --> 00:02:06,019 cookies to help make potential buyers feel at home during an open house.