Why Does Food Make Your Mouth Water?

Reactions takes a look at the science behind why food makes your mouth water. There's a lot of chemistry in that saliva of yours. In this episode, 2015 ACS Chemistry Champions contest winner Hadi Fares explains the chemical mechanisms behind dinnertime drooling.

Season 3 Episode 12 Length 03:10 Premiere: 03/15/16

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Season 3 Episodes

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Show Clips & Previews

Does Cough Medicine Really Work?

S3 E55 Length 03:55 Premiere Date 01/03/17

How Does Alcohol Get You Drunk?

S3 E54 Length 03:26 Premiere Date 12/27/16

The Cold Truth About Fat

S3 E53 Length 03:00 Premiere Date 12/22/16

Let's Settle This: How to Care for Cast-Iron

S3 E52 Length 03:08 Premiere Date 12/15/16

How To Get Rid of Beer Foam Fast

S3 E51 Length 01:35 Premiere Date 12/07/16

You Can Taste Garlic with Your Feet!?

S3 E50 Length 02:36 Premiere Date 12/06/16

Gum + Chocolate = ?????

S3 E49 Length 02:10 Premiere Date 12/04/16

Can I Still Eat This?

S3 E48 Length 04:19 Premiere Date 11/29/16

How to Fry a Thanksgiving Turkey Without Burning Your House

S3 E47 Length 03:14 Premiere Date 11/21/16

What's the Deal with Acne?

S3 E46 Length 03:56 Premiere Date 11/15/16

The Science of Distance Running

S3 E45 Length 04:23 Premiere Date 11/03/16

How Much Candy Would Kill You?

S3 E44 Length 03:32 Premiere Date 11/03/16

Have We Found All The Elements?

S3 E43 Length 05:19 Premiere Date 10/19/16

How Does Anesthesia Work?

S3 E42 Length 03:23 Premiere Date 10/11/16

What Causes PMS?

S3 E41 Length 03:30 Premiere Date 10/04/16

How To Bring Stale Chips And Bread Back From The Dead

S3 E40 Length 03:39 Premiere Date 09/27/16

Accidental Discoveries That Go Boom

S3 E39 Length 05:40 Premiere Date 09/20/16

How Do Lithium-Ion Batteries Work?

S3 E38 Length 03:46 Premiere Date 09/13/16

Genetically Modified Humans? CRISPR/Cas 9 Explained

S3 E37 Length 03:56 Premiere Date 09/06/16

What If Humans Could Photosynthesize?

S3 E36 Length 04:04 Premiere Date 08/30/16

Is It OK To Pee In The Pool?

S3 E35 Length 03:00 Premiere Date 08/16/16

How To Make Fish Less Fishy (Chemistry Life Hacks)

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How to Catch Dopers

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The World's Most Unavoidable Carcinogen

S3 E32 Length 03:04 Premiere Date 07/26/16

How Does Protein Build Muscle?

S3 E31 Length 03:40 Premiere Date 07/19/16

How To Make a Fluorescent Flower

S3 E30 Length 01:41 Premiere Date 07/12/16

How Does Fluorescence Work?

S3 E29 Length 03:23 Premiere Date 07/12/16

Is Fluoride in Drinking Water Safe?

S3 E28 Length 03:14 Premiere Date 07/05/16

How Do Sparklers Work?

S3 E27 Length 02:23 Premiere Date 06/28/16

Why the Maillard Reaction Makes Everything Delicious

S3 E26 Length 02:53 Premiere Date 06/21/16

Elephant Toothpaste

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Why Do Onions Make You Cry?

S3 E24 Length 02:18 Premiere Date 06/07/16

Does Gum Really Stay In Your Stomach for 7 Years?

S3 E23 Length 03:00 Premiere Date 05/17/16

Does Homeopathy Work?

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How Can You Make Flowers Last Longer?

S3 E21 Length 03:09 Premiere Date 05/06/16

What's The Best Way To Whiten Teeth?

S3 E20 Length 03:59 Premiere Date 04/26/16

Why Is Snake Venom So Deadly?

S3 E19 Length 03:48 Premiere Date 04/19/16

What Makes Coffee So Good?

S3 E18 Length 04:54 Premiere Date 04/12/16

How Does Toothpaste Work and Who Are We?

S3 E17 Length 02:35 Premiere Date 04/07/16

Why Does Metal Rust?

S3 E16 Length 01:54 Premiere Date 12/21/22

Why Do Wasps Attack?

S3 E15 Length 05:00 Premiere Date 04/05/16

Why Are Synthetic Drugs So Dangerous?

S3 E14 Length 03:32 Premiere Date 03/29/16

The Truth About Peanut Allergies

S3 E13 Length 02:41 Premiere Date 03/22/16