Here is a fun question... Can you name one hole in your body that, if sewn shut, would help you function better?
Assuming you have an anatomically normal body, the answer is none. While saying that "bad plumbing" causes Alzheimer's Disease is an oversimplification, it is a great way to quickly explain why we angel invested in Leucadia Therapeutics in 2015. The Principal Scientist, Founder, and CEO of Leucadia Therapeutics, Doug Ethell, Ph.D., had an Occam Razor's approach to AD, which was refreshing to us and an inspiration. As it turns out, the Cribriform Plate that drains cerebrospinal fluid can get ossified or clogged as you age. In AD patients, it is always significantly clogged, thus the "bad plumbing" analogy.