I e-mailed her at her web site. This was her response:

Glad you enjoyed the website - the two young men that designed it are
very creative and tried to keep with the 60's theme. 
I think they did a great job and I'll pass your praise along as they thrive on it. 

Lets see - to answer your question - I'm not really sure what makes me laugh  - I
do laugh a lot though, so too does my mother, so perhaps I inherited the
laughing gene.  I understand it enhances good health and she is 89 and
seems to be in great health, so there must be something to it. I'm not
ticklish, but I do laugh at movies as well as comedians - although I
don't go to Comic Clubs as they are too loud.  Hope this is a good
answer for you. Best Bat Wishes  Yvonne (via my sister's e-mail address)

http://216.33.240.250/cgi-bin/linkrd?_lang=&lah=dfc3ff413a1cefc440eea51b3286b811&lat=955544109&hm___action=http%3a%2f%2fwww%2eyvonnecraig%2ecom
check it out!!!
http://toyou-toyou.tripod.com/cgi-bin/compose?disk=216.33.240.70_d639&login=gmdino44&f=33792&curmbox=ACTIVE&_lang=&mailto=1&[email protected]&msg=MSG931391438.0&start=6396&len=2011&src=&type=x