WEBVTT

00:00.540 --> 00:03.360
obesity can be simply understood as

00:03.360 --> 00:06.210
having too much body fat dr Malone .

00:06.220 --> 00:07.887
Can you tell us about obesity

00:07.887 --> 00:11.420
definitely Major spencer body fat in

00:11.420 --> 00:13.690
general can be measured by body mass

00:13.700 --> 00:16.870
index or B . M . I . A . B . M . I

00:16.870 --> 00:20.320
between 18.5 and 24.9 is

00:20.320 --> 00:22.970
considered normal . Weight . Overweight

00:22.980 --> 00:24.980
is defined as having A B . M . I

00:24.990 --> 00:28.660
between 25.0 and 29.9 .

00:29.140 --> 00:33.090
Obesity is diagnosed at a bmi of 30 and

00:33.090 --> 00:36.810
above Morbid obesity , defined as a bmi

00:36.810 --> 00:39.620
of 40 and above is an additional

00:39.620 --> 00:41.342
threshold for patients that is

00:41.342 --> 00:44.580
especially dangerous over a period of

00:44.580 --> 00:46.980
time , if someone eats more calories

00:46.990 --> 00:49.390
than they use or burn , they will store

00:49.390 --> 00:52.040
those extra calories as fat and slowly

00:52.040 --> 00:54.390
gain weight . This increases the

00:54.390 --> 00:56.870
individual's risk of becoming obese .

00:57.540 --> 01:00.160
The optimal balance between calories in

01:00.170 --> 01:02.380
and calories out differs for each

01:02.380 --> 01:04.780
person because the general ability to

01:04.780 --> 01:07.400
burn calories depends on muscle mass ,

01:07.410 --> 01:09.760
which is initially determined by height .

01:09.770 --> 01:12.300
However , factors that contribute to

01:12.300 --> 01:14.580
weight gain are often the same for most

01:14.580 --> 01:18.090
people , including diet activity level ,

01:18.170 --> 01:21.990
lifestyle and genetics . In some cases ,

01:22.000 --> 01:24.300
microbiome , a type of bacteria

01:24.300 --> 01:26.210
colonized in the gut , may also

01:26.210 --> 01:29.050
contribute to weight gain . When a

01:29.050 --> 01:31.630
person consumes more calories from food

01:31.630 --> 01:33.408
and drink than they use through

01:33.408 --> 01:35.730
physical activity . Their body stores

01:35.730 --> 01:38.530
the excess calories as fat . A few

01:38.530 --> 01:40.760
extra pounds may not seem like much ,

01:40.770 --> 01:43.460
but over months and years . The effect

01:43.470 --> 01:46.420
can be quite significant . Too much fat

01:46.420 --> 01:48.476
in the body can cause serious health

01:48.476 --> 01:51.220
problems . These problems can include

01:51.230 --> 01:54.260
high blood pressure , high cholesterol ,

01:54.270 --> 01:58.120
high blood glucose heart disease , type

01:58.120 --> 02:01.890
two , diabetes , stroke vascular

02:01.890 --> 02:04.630
disease , joint problems , liver

02:04.630 --> 02:07.960
disease , some types of cancer and

02:07.970 --> 02:10.550
difficulty getting a good physical exam

02:10.560 --> 02:12.890
or accurate interpretation of imaging

02:12.890 --> 02:15.490
studies due to the interference of fat

02:15.490 --> 02:18.760
tissue . The good news is that if an

02:18.760 --> 02:21.120
adult is obese losing a relatively

02:21.120 --> 02:23.342
small percentage of their body weight ,

02:23.342 --> 02:26.400
as little as 5-10% can potentially

02:26.400 --> 02:28.580
delay or prevent some of these

02:28.580 --> 02:29.650
consequences .

