[SHIELDING BRAIN] Copper foil lined wool watch cap

I purchased a thick 100% wool watchman cap that covers the forehead and ears. The cap is long. The end folded over protects the ears with two layers of wool. Warm cap! Wigwam Mills Worsted Wool Ribbed Watchcap Beanie Hat

www.amazon.com/Wigwam-Mens-Ribbed-Watch-Black/dp/B003KQ696A/ref=sr_1_1?s=apparel&ie=UTF8&qid=1446257106&sr=1-1&nodeID=7141123011&keywords=Wigwam+Mills+Worsted+Wool+Ribbed+Watchcap+Beanie+Hat+black

I lined the inside of the cap from the top to where I fold the bottom over with a single layer of copper foil tape. I wore my cap during the daytime and at night I wore a steel helmet over the cap. The shielding of the single layer of copper was inadequate.

1 in X 6 yd Copper Foil Tape by Tapecase was enough to line the cap. The tape is very thin and did not have enough adhesive. Thickness is not disclosed in product description. Removing cap from my head pulled my hair as copper tape stuck to it.

www.amazon.com/TapeCase-1126-Copper-Foil-Tape/dp/B007Y7F8OA/ref=sr_1_10?ie=UTF8&qid=1446257200&sr=8-10&keywords=copper+foil+tape

I will purchase a thicker copper tape for a second layer. Copper guitar tape is thicker. 30 micron thick.

www.amazon.com/Copper-Foil-Shielding-Tape-Guitars/dp/B00KLJLNWE/ref=sr_1_15?ie=UTF8&qid=1446257200&sr=8-15&keywords=copper+foil+tape

How many layers of copper foil tape to shield?

Thinking Cap

The copper on my head stimulated my brain. Like a thinking cap! I researched copper and brain stimulation:

www.indiatimes.com/health/healthyliving/ayurveda-benefits-of-drinking-water-from-copper-vessel-241242.html

www.sanskritimagazine.com/ayurveda/why-copper-was-used-by-our-ancestors/