Matching (20) Match items in column A to column B

Column a Column b
1.
A.
Depressants
2.
B.
Narcolepsy
3.
C.
Meditation
4.
D.
Jet Lag
5.
E.
Widthdrawl
6.
F.
Biofeedback
7.
G.
Sleep Apnea
8.
H.
Nathaniel Keitman
9.
I.
Sigmund Freud
10.
J.
Marijuana
11.
K.
REM Sleep
12.
L.
Hypnosis
13.
M.
Nightmares
14.
N.
Hallucination
15.
O.
Physical Dependence
16.
P.
Psychoactive Drug
17.
Q.
Tolerance
18.
R.
Night Terrors
19.
S.
Insomnia
20.
T.
Francis Crick