MythBusters Take on Seasickness

This is from an Episode of MythBusters:

Results:

Seasickness - Kill or Cure?:

The Myth: A variety of non-pharmaceutical remedies to treat seasickness.

First, the Mythbusters need some guinea pigs to test; fortunately, Adam is well known to suffer from seasickness. In a test rig meant to induce seasickness, Adam lasts about 3.5 minutes. Jamie, Kari and Tory show no signs of trouble, but Grant also gets sick after 10 minutes. With a baseline and two test subjects, it's time for the tests.

Test 1: Mouth spray
BUSTED - Grant starts to vomit after 10 minutes, and Adam only lasts 4.

Test 2: Wrist straps
BUSTED - Within 2 minutes, Adam can feel himself getting sick and calls it off; Grant also gets sick, though his time wasn't reported.

Test 3: Ginger pills
PLAUSIBLE - After taking the pills and waiting an hour for the effects to kick in, Adam goes 25 minutes in the chair with no problem; Grants follows up with 30 minutes nausea free.

Test 4: Electric stimulation wristband
BUSTED - Both Adam and Grant get sick.

Test 5: Placebo test
??? - Adam still gets sick in minutes, but Grant lasts 20 minutes with no ill effect; this suggests that Grant's seasickness is partially in his mind, and that he is not really seasick.

Test 6: A pharmaceutical
PLAUSIBLE - Only Adam is shown on the chair, but Kari notes that both have similar results, they didn't get sick, but don't look too well either.

The end result, the ginger pills are deemed PLAUSIBLE.