[Script Info]
Title: 
[Events]
Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text
Dialogue: 0,0:00:06.91,0:00:09.91,Default,,0000,0000,0000,,Our story is about a girl named Iris.
Dialogue: 0,0:00:09.93,0:00:12.13,Default,,0000,0000,0000,,Iris is very sensitive.
Dialogue: 0,0:00:12.16,0:00:13.34,Default,,0000,0000,0000,,(Bird cawing)
Dialogue: 0,0:00:13.36,0:00:15.62,Default,,0000,0000,0000,,So much that she is always in tears.
Dialogue: 0,0:00:16.100,0:00:18.55,Default,,0000,0000,0000,,She cries when she's sad,
Dialogue: 0,0:00:20.00,0:00:21.51,Default,,0000,0000,0000,,when she's happy,
Dialogue: 0,0:00:21.84,0:00:22.92,Default,,0000,0000,0000,,(Godzilla roars)
Dialogue: 0,0:00:23.08,0:00:25.68,Default,,0000,0000,0000,,and even tears up\Nwhen things just get to her.
Dialogue: 0,0:00:28.02,0:00:31.34,Default,,0000,0000,0000,,She has special lacrimal glands\Nto make new tears
Dialogue: 0,0:00:31.36,0:00:33.76,Default,,0000,0000,0000,,and special tubes, called lacrimal puncta,
Dialogue: 0,0:00:33.79,0:00:35.24,Default,,0000,0000,0000,,to drain old ones away.
Dialogue: 0,0:00:36.69,0:00:38.96,Default,,0000,0000,0000,,And she cries so much\Nthat she goes through
Dialogue: 0,0:00:38.98,0:00:41.23,Default,,0000,0000,0000,,ten ounces of tears per day,
Dialogue: 0,0:00:41.26,0:00:42.52,Default,,0000,0000,0000,,thirty gallons a year!
Dialogue: 0,0:00:43.47,0:00:45.34,Default,,0000,0000,0000,,In fact, if you look closely,
Dialogue: 0,0:00:45.37,0:00:48.62,Default,,0000,0000,0000,,you'll see that she's crying\Na little bit all the time.
Dialogue: 0,0:00:49.97,0:00:52.57,Default,,0000,0000,0000,,The basal tears that Iris\Nconstantly produces
Dialogue: 0,0:00:52.59,0:00:54.98,Default,,0000,0000,0000,,form a thin coating of three layers
Dialogue: 0,0:00:54.100,0:00:57.71,Default,,0000,0000,0000,,that cover her and keep\Ndirt and debris away.
Dialogue: 0,0:00:58.38,0:01:00.89,Default,,0000,0000,0000,,Right next to Iris is the mucus layer,
Dialogue: 0,0:01:00.92,0:01:03.72,Default,,0000,0000,0000,,which keeps the whole\Nthing fastened to her.
Dialogue: 0,0:01:03.74,0:01:06.03,Default,,0000,0000,0000,,On top of it is the aqueous layer,
Dialogue: 0,0:01:06.06,0:01:09.42,Default,,0000,0000,0000,,which keeps Iris hydrated,\Nrepels invasive bacteria,
Dialogue: 0,0:01:09.45,0:01:12.40,Default,,0000,0000,0000,,and protects her skin,\Nor cornea, from damage.
Dialogue: 0,0:01:13.17,0:01:15.56,Default,,0000,0000,0000,,And, finally, there is the lipid layer,
Dialogue: 0,0:01:15.58,0:01:18.74,Default,,0000,0000,0000,,an oily outer film that keeps\Nthe surface smooth
Dialogue: 0,0:01:18.76,0:01:20.05,Default,,0000,0000,0000,,for Iris to see through,
Dialogue: 0,0:01:20.08,0:01:22.28,Default,,0000,0000,0000,,and prevents the other\Nlayers from evaporating.
Dialogue: 0,0:01:23.01,0:01:24.90,Default,,0000,0000,0000,,Normally, Iris goes about her day
Dialogue: 0,0:01:24.93,0:01:28.18,Default,,0000,0000,0000,,without really noticing\Nthe basal tears doing their thing.
Dialogue: 0,0:01:28.21,0:01:30.02,Default,,0000,0000,0000,,That's kind of their whole point.
Dialogue: 0,0:01:30.04,0:01:32.90,Default,,0000,0000,0000,,But one day, she meets a girl named Onion.
Dialogue: 0,0:01:32.92,0:01:34.89,Default,,0000,0000,0000,,Iris is immediately smitten.
Dialogue: 0,0:01:34.91,0:01:37.21,Default,,0000,0000,0000,,Onion looks gorgeous in her\Nbright purple jacket,
Dialogue: 0,0:01:37.24,0:01:39.10,Default,,0000,0000,0000,,and she smells terrific.
Dialogue: 0,0:01:39.76,0:01:42.24,Default,,0000,0000,0000,,So, Iris invites Onion\Nto her house for dinner.
Dialogue: 0,0:01:43.27,0:01:45.46,Default,,0000,0000,0000,,But when she comes in\Nand takes off her jacket,
Dialogue: 0,0:01:45.49,0:01:47.07,Default,,0000,0000,0000,,something terrible happens.
Dialogue: 0,0:01:47.10,0:01:49.64,Default,,0000,0000,0000,,You see, when Onion's jacket is removed,
Dialogue: 0,0:01:49.66,0:01:51.48,Default,,0000,0000,0000,,a chemical reaction happens,
Dialogue: 0,0:01:51.50,0:01:54.76,Default,,0000,0000,0000,,converting the sulfoxides\Nthat make her smell so great
Dialogue: 0,0:01:54.78,0:01:56.59,Default,,0000,0000,0000,,into sulfenic acid,
Dialogue: 0,0:01:56.62,0:01:59.58,Default,,0000,0000,0000,,which then becomes a nasty\Nsubstance with a long name:
Dialogue: 0,0:02:00.58,0:02:03.28,Default,,0000,0000,0000,,syn-Propanethial S-oxide.
Dialogue: 0,0:02:04.47,0:02:07.73,Default,,0000,0000,0000,,The gas stings Iris,\Nand suddenly, she can't help it,
Dialogue: 0,0:02:07.75,0:02:09.45,Default,,0000,0000,0000,,she starts weeping uncontrollably.
Dialogue: 0,0:02:10.33,0:02:13.14,Default,,0000,0000,0000,,These reflex tears are different\Nfrom the basal tears
Dialogue: 0,0:02:13.16,0:02:14.34,Default,,0000,0000,0000,,that Iris is used to.
Dialogue: 0,0:02:14.88,0:02:16.27,Default,,0000,0000,0000,,Because they're designed
Dialogue: 0,0:02:16.29,0:02:18.48,Default,,0000,0000,0000,,to wash away harmful\Nsubstances, or particles,
Dialogue: 0,0:02:18.50,0:02:21.19,Default,,0000,0000,0000,,they're released in much larger amounts,
Dialogue: 0,0:02:21.22,0:02:23.89,Default,,0000,0000,0000,,and their aqueous layer\Ncontains more antibodies
Dialogue: 0,0:02:23.91,0:02:27.34,Default,,0000,0000,0000,,to stop any microorganisms\Nthat may be trying to get in, as well.
Dialogue: 0,0:02:28.25,0:02:30.32,Default,,0000,0000,0000,,Both Iris and Onion are devastated.
Dialogue: 0,0:02:30.91,0:02:33.20,Default,,0000,0000,0000,,They know they can't continue\Ntheir relationship
Dialogue: 0,0:02:33.22,0:02:37.59,Default,,0000,0000,0000,,if Iris is going to hurt and cry\Nevery time Onion takes off her jacket.
Dialogue: 0,0:02:37.61,0:02:39.04,Default,,0000,0000,0000,,So, they decide to break up.
Dialogue: 0,0:02:39.52,0:02:42.31,Default,,0000,0000,0000,,As Onion walks out the door,\NIris stops crying.
Dialogue: 0,0:02:42.61,0:02:44.35,Default,,0000,0000,0000,,And immediately starts again.
Dialogue: 0,0:02:44.69,0:02:48.68,Default,,0000,0000,0000,,Only now, she's not crying\Nreflex tears but emotional tears.
Dialogue: 0,0:02:49.66,0:02:52.57,Default,,0000,0000,0000,,When someone is either\Ntoo sad or too happy,
Dialogue: 0,0:02:52.59,0:02:54.34,Default,,0000,0000,0000,,it feels like a loss of control,
Dialogue: 0,0:02:54.37,0:02:55.61,Default,,0000,0000,0000,,which can be dangerous.
Dialogue: 0,0:02:55.64,0:02:58.82,Default,,0000,0000,0000,,So, emotional tears are sent in\Nto stabilize the mood
Dialogue: 0,0:02:58.84,0:03:00.81,Default,,0000,0000,0000,,as quickly as possible,
Dialogue: 0,0:03:00.83,0:03:02.73,Default,,0000,0000,0000,,along with other physical reactions,
Dialogue: 0,0:03:02.76,0:03:05.58,Default,,0000,0000,0000,,such as an increased heart rate\Nand slower breathing.
Dialogue: 0,0:03:05.60,0:03:07.82,Default,,0000,0000,0000,,But scientists still aren't sure
Dialogue: 0,0:03:07.85,0:03:11.09,Default,,0000,0000,0000,,exactly how or why the tears\Nthemselves are helpful.
Dialogue: 0,0:03:11.41,0:03:15.30,Default,,0000,0000,0000,,They may be a social mechanism\Nto elicit sympathy or show submission.
Dialogue: 0,0:03:15.87,0:03:17.79,Default,,0000,0000,0000,,But some studies have also found
Dialogue: 0,0:03:17.82,0:03:21.38,Default,,0000,0000,0000,,that emotional tears contain\Nhigher levels of stress hormones,
Dialogue: 0,0:03:21.40,0:03:24.30,Default,,0000,0000,0000,,such as ACTH and enkephalin,
Dialogue: 0,0:03:24.32,0:03:26.64,Default,,0000,0000,0000,,an endorphin and natural pain killer.
Dialogue: 0,0:03:26.67,0:03:30.40,Default,,0000,0000,0000,,In this case, emotional tears\Nare also directly calming Iris down,
Dialogue: 0,0:03:30.42,0:03:32.98,Default,,0000,0000,0000,,as well as signaling\Nher emotional state to others.
Dialogue: 0,0:03:33.65,0:03:35.96,Default,,0000,0000,0000,,Sorry things didn't work out\Nwith Onion, Iris,
Dialogue: 0,0:03:35.99,0:03:37.06,Default,,0000,0000,0000,,but don't worry.
Dialogue: 0,0:03:37.08,0:03:39.18,Default,,0000,0000,0000,,As long as you have\Nall three kinds of tears
Dialogue: 0,0:03:39.20,0:03:42.14,Default,,0000,0000,0000,,working to keep you balanced\Nand healthy, it will get better.
Dialogue: 0,0:03:42.17,0:03:43.27,Default,,0000,0000,0000,,You'll see.