What is asthma?
Asthma is a chronic, long-term condition that causes the airways in the lungs to become inflamed, swollen, and narrowed at times.
asthma
Browse videos by topic categories
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
ALL
ABCDEFGHIJKLMN