Healthcare
Visualizing What COVID-19 Does to Your Body
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Visualizing What COVID-19 Does to Your Body
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By now, researchers and health experts have gained a better understanding of the range of symptoms caused by COVID-19, which include fever, a dry cough, and of course, the dangerous inflammation of the respiratory system. Most of us know that COVID-19 can be much more severe than a typical flu, but lesser known are the mechanics behind how the virus causes pneumonia in its victims.
Today’s informative illustration, by scientific designer and animator Avesta Rastan, details the effects COVID-19 has on our lungs, from moderate to severe cases.
According to the World Health Organization (WHO), most people who contract COVID-19 only experience mild flu-like symptoms. Occasionally though, the infection can cascade into a severe case of pneumonia that can be lethal, especially for older people and those with underlying medical conditions.
Here’s what COVID-19 does to your body.
Infection
The virus, officially named SARS-CoV-2, enters the body – generally through the mouth or nose. From there, the virus makes its way down into the air sacs inside your lungs, known as alveoli.
Once in the alveoli, the virus uses its distinctive spike proteins to “hijack” cells. The primary genetic programming of any virus is to make copies of itself, and COVID-19 is no exception. Once the virus’ RNA has entered a cell, new copies are made and the cell is killed in the process, releasing new viruses to infect neighboring cells in the alveolus.
This process can occur initially without a person being aware of the infection, which is one of the reasons COVID-19 has been able to spread so effectively.
Immune Response
The process of hijacking cells to reproduce causes inflammation in the lungs, which triggers an immune response. As this process unfolds, fluid begins to accumulate in the alveoli, causing a dry cough and making breathing difficult.
For 80-85% of people infected by COVID-19, these symptoms will run their course much as they would with a case of the flu.
Severe Symptoms
In 15-20% cases, the immune system’s response to inflammation in the lungs can cause what’s known as a “cytokine storm”. This runaway response can cause more damage to the body’s own cells than to the virus it’s trying to defeat, and is thought to be the main reason for why the conditions of young, otherwise healthy individuals can rapidly deteriorate.
If enough alveoli collapse, a patient to be placed on a ventilator for breathing assistance. Both acute respiratory distress syndrome (ARDS) and high-altitude pulmonary edema (HAPE) are being investigated as causes.
At this stage, the surfactant that helps keep alveoli from collapsing has been diluted, and fluid containing cellular debris is impairing the gas exchange process that supplies oxygen to our bloodstream.
In the most severe cases, systemic inflammatory response syndrome (SIRS) occurs as the protein-rich fluid from the lungs enters the bloodstream, resulting in septic shock and multi-organ failure. This is often the cause of death for people who have succumbed to a COVID-19 infection.
The Best Protection
Thankfully, COVID-19 isn’t a death sentence for most people who become infected, but the symptoms described above are not pleasant. Until a vaccine is developed, the best defense is avoiding infection altogether through frequent, thorough hand washing, and physical distancing as recommended by health authorities.
To see the full set of graphics, as well as other health and science related illustrations, visit Avesta Rastan’s website.
Healthcare
Charted: Average Years Left to Live by Age
Visualizing the number of years left to live for Americans at every age, reveals the broader trends in American life expectancy.

How Many Years Do You Have Left to Live?
At the start of the 19th century, when there fewer than 1 billion humans on the earth, global life expectancy at birth stood at roughly 29 years.
This is a startlingly low figure—because life expectancy is a statistical projection of how many more years a person can expect to live, based on the mortality rates at the time. And since the infant mortality rate in particular was so high, life expectancies accurately summarized the low likelihood of many babies living to adulthood.
However, since the 1920s, life expectancy across all ages has improved leaps and bounds, thanks to rapid advancements in nutrition, healthcare, and sanitation.
We visualized the current American life expectancy by age and gender, using data from the Office of Social Security, which bases their current projections on 2020 mortality rates.
American Life Expectancy at Every Age
A key takeaway with life expectancy is that it increases as one gets older. This is easily seen in the table below, which lists the remaining years left to live at a given age for an American male and the projected life expectancy.
Age | Years Remaining (Men) | Life Expectancy (Men) |
---|---|---|
0 | 74.12 | 74.12 |
1 | 73.55 | 74.55 |
2 | 72.58 | 74.58 |
3 | 71.60 | 74.60 |
4 | 70.62 | 74.62 |
5 | 69.63 | 74.63 |
6 | 68.64 | 74.64 |
7 | 67.65 | 74.65 |
8 | 66.65 | 74.65 |
9 | 65.66 | 74.66 |
10 | 64.67 | 74.67 |
11 | 63.68 | 74.68 |
12 | 62.69 | 74.69 |
13 | 61.70 | 74.70 |
14 | 60.71 | 74.71 |
15 | 59.73 | 74.73 |
16 | 58.76 | 74.76 |
17 | 57.79 | 74.79 |
18 | 56.84 | 74.84 |
19 | 55.90 | 74.90 |
20 | 54.97 | 74.97 |
21 | 54.04 | 75.04 |
22 | 53.12 | 75.12 |
23 | 52.21 | 75.21 |
24 | 51.30 | 75.30 |
25 | 50.39 | 75.39 |
26 | 49.48 | 75.48 |
27 | 48.57 | 75.57 |
28 | 47.66 | 75.66 |
29 | 46.76 | 75.76 |
30 | 45.86 | 75.86 |
31 | 44.97 | 75.97 |
32 | 44.07 | 76.07 |
33 | 43.18 | 76.18 |
34 | 42.29 | 76.29 |
35 | 41.39 | 76.39 |
36 | 40.50 | 76.50 |
37 | 39.62 | 76.62 |
38 | 38.73 | 76.73 |
39 | 37.85 | 76.85 |
40 | 36.97 | 76.97 |
41 | 36.09 | 77.09 |
42 | 35.21 | 77.21 |
43 | 34.34 | 77.34 |
44 | 33.46 | 77.46 |
45 | 32.59 | 77.59 |
46 | 31.73 | 77.73 |
47 | 30.87 | 77.87 |
48 | 30.01 | 78.01 |
49 | 29.17 | 78.17 |
50 | 28.33 | 78.33 |
51 | 27.50 | 78.50 |
52 | 26.67 | 78.67 |
53 | 25.86 | 78.86 |
54 | 25.06 | 79.06 |
55 | 24.27 | 79.27 |
56 | 23.48 | 79.48 |
57 | 22.71 | 79.71 |
58 | 21.95 | 79.95 |
59 | 21.21 | 80.21 |
60 | 20.47 | 80.47 |
61 | 19.74 | 80.74 |
62 | 19.03 | 81.03 |
63 | 18.32 | 81.32 |
64 | 17.63 | 81.63 |
65 | 16.94 | 81.94 |
66 | 16.26 | 82.26 |
67 | 15.58 | 82.58 |
68 | 14.91 | 82.91 |
69 | 14.24 | 83.24 |
70 | 13.59 | 83.59 |
71 | 12.94 | 83.94 |
72 | 12.30 | 84.30 |
73 | 11.67 | 84.67 |
74 | 11.05 | 85.05 |
75 | 10.46 | 85.46 |
76 | 9.88 | 85.88 |
77 | 9.32 | 86.32 |
78 | 8.77 | 86.77 |
79 | 8.25 | 87.25 |
80 | 7.74 | 87.74 |
81 | 7.25 | 88.25 |
82 | 6.77 | 88.77 |
83 | 6.31 | 89.31 |
84 | 5.88 | 89.88 |
85 | 5.47 | 90.47 |
86 | 5.07 | 91.07 |
87 | 4.70 | 91.70 |
88 | 4.35 | 92.35 |
89 | 4.02 | 93.02 |
90 | 3.72 | 93.72 |
91 | 3.44 | 94.44 |
92 | 3.18 | 95.18 |
93 | 2.96 | 95.96 |
94 | 2.75 | 96.75 |
95 | 2.57 | 97.57 |
96 | 2.42 | 98.42 |
97 | 2.28 | 99.28 |
98 | 2.15 | 100.15 |
99 | 2.04 | 101.04 |
100 | 1.93 | 101.93 |
101 | 1.83 | 102.83 |
102 | 1.73 | 103.73 |
103 | 1.63 | 104.63 |
104 | 1.54 | 105.54 |
105 | 1.45 | 106.45 |
106 | 1.36 | 107.36 |
107 | 1.27 | 108.27 |
108 | 1.18 | 109.18 |
109 | 1.10 | 110.10 |
110 | 1.02 | 111.02 |
111 | 0.95 | 111.95 |
112 | 0.88 | 112.88 |
113 | 0.82 | 113.82 |
114 | 0.76 | 114.76 |
115 | 0.70 | 115.70 |
116 | 0.65 | 116.65 |
117 | 0.60 | 117.60 |
118 | 0.56 | 118.56 |
119 | 0.52 | 119.52 |
120 | 0.48 | 120.48 |
At birth, an average American baby boy can expect to live till just past 74. But if the boy reaches adulthood, then at 21 he might live to a full year more, past 75. This trend persists even towards the end of life when the years we have left drop rapidly, influenced by the higher likelihood of death.
American women, on the other hand, have a higher life expectancy than men. At birth the gap is close to six years, narrowing steadily to around one year by 85.
Age | Years Remaining (Women) | Life Expectancy (Women) |
---|---|---|
0 | 79.78 | 79.78 |
1 | 79.17 | 80.17 |
2 | 78.19 | 80.19 |
3 | 77.21 | 80.21 |
4 | 76.22 | 80.22 |
5 | 75.23 | 80.23 |
6 | 74.24 | 80.24 |
7 | 73.25 | 80.25 |
8 | 72.25 | 80.25 |
9 | 71.26 | 80.26 |
10 | 70.27 | 80.27 |
11 | 69.27 | 80.27 |
12 | 68.28 | 80.28 |
13 | 67.29 | 80.29 |
14 | 66.30 | 80.30 |
15 | 65.31 | 80.31 |
16 | 64.32 | 80.32 |
17 | 63.34 | 80.34 |
18 | 62.36 | 80.36 |
19 | 61.38 | 80.38 |
20 | 60.41 | 80.41 |
21 | 59.44 | 80.44 |
22 | 58.47 | 80.47 |
23 | 57.50 | 80.50 |
24 | 56.54 | 80.54 |
25 | 55.58 | 80.58 |
26 | 54.61 | 80.61 |
27 | 53.66 | 80.66 |
28 | 52.70 | 80.70 |
29 | 51.74 | 80.74 |
30 | 50.79 | 80.79 |
31 | 49.84 | 80.84 |
32 | 48.89 | 80.89 |
33 | 47.94 | 80.94 |
34 | 47.00 | 81.00 |
35 | 46.06 | 81.06 |
36 | 45.12 | 81.12 |
37 | 44.18 | 81.18 |
38 | 43.24 | 81.24 |
39 | 42.31 | 81.31 |
40 | 41.38 | 81.38 |
41 | 40.45 | 81.45 |
42 | 39.52 | 81.52 |
43 | 38.60 | 81.60 |
44 | 37.68 | 81.68 |
45 | 36.76 | 81.76 |
46 | 35.85 | 81.85 |
47 | 34.94 | 81.94 |
48 | 34.04 | 82.04 |
49 | 33.14 | 82.14 |
50 | 32.24 | 82.24 |
51 | 31.35 | 82.35 |
52 | 30.47 | 82.47 |
53 | 29.59 | 82.59 |
54 | 28.72 | 82.72 |
55 | 27.86 | 82.86 |
56 | 27.01 | 83.01 |
57 | 26.16 | 83.16 |
58 | 25.32 | 83.32 |
59 | 24.49 | 83.49 |
60 | 23.67 | 83.67 |
61 | 22.85 | 83.85 |
62 | 22.04 | 84.04 |
63 | 21.24 | 84.24 |
64 | 20.45 | 84.45 |
65 | 19.66 | 84.66 |
66 | 18.88 | 84.88 |
67 | 18.10 | 85.10 |
68 | 17.34 | 85.34 |
69 | 16.58 | 85.58 |
70 | 15.82 | 85.82 |
71 | 15.08 | 86.08 |
72 | 14.36 | 86.36 |
73 | 13.64 | 86.64 |
74 | 12.94 | 86.94 |
75 | 12.26 | 87.26 |
76 | 11.60 | 87.60 |
77 | 10.95 | 87.95 |
78 | 10.31 | 88.31 |
79 | 9.70 | 88.70 |
80 | 9.10 | 89.10 |
81 | 8.53 | 89.53 |
82 | 7.98 | 89.98 |
83 | 7.44 | 90.44 |
84 | 6.93 | 90.93 |
85 | 6.44 | 91.44 |
86 | 5.99 | 91.99 |
87 | 5.55 | 92.55 |
88 | 5.15 | 93.15 |
89 | 4.76 | 93.76 |
90 | 4.41 | 94.41 |
91 | 4.08 | 95.08 |
92 | 3.78 | 95.78 |
93 | 3.51 | 96.51 |
94 | 3.27 | 97.27 |
95 | 3.05 | 98.05 |
96 | 2.85 | 98.85 |
97 | 2.68 | 99.68 |
98 | 2.52 | 100.52 |
99 | 2.37 | 101.37 |
100 | 2.23 | 102.23 |
101 | 2.09 | 103.09 |
102 | 1.96 | 103.96 |
103 | 1.84 | 104.84 |
104 | 1.72 | 105.72 |
105 | 1.61 | 106.61 |
106 | 1.51 | 107.51 |
107 | 1.41 | 108.41 |
108 | 1.32 | 109.32 |
109 | 1.24 | 110.24 |
110 | 1.16 | 111.16 |
111 | 1.09 | 112.09 |
112 | 1.02 | 113.02 |
113 | 0.96 | 113.96 |
114 | 0.90 | 114.90 |
115 | 0.85 | 115.85 |
116 | 0.80 | 116.80 |
117 | 0.75 | 117.75 |
118 | 0.70 | 118.70 |
119 | 0.66 | 119.66 |
120 | 0.62 | 120.62 |
Interestingly, women outlive men in nearly every country in the world, due to a mix of sociological, behavioral, and biological reasons.
COVID-19: Reversing A Decade of Increasing American Life Expectancy
While the current American life expectancy at birth seems reasonably high, it is nearly two years lower than the 2022 figure which used the 2019 mortality rate. It is also lower than the life expectancy at birth in 2009, which used 2005 mortality rate.
Year | Life Expectancy at Birth (Men) | Life Expectancy at Birth (Women) |
---|---|---|
2009 | 74.12 | 79.95 |
2014 | 76.10 | 80.94 |
2019 | 76.04 | 80.99 |
2023 | 74.12 | 79.78 |
American mortality rates went up 17% between 2019–2020, in part because of COVID-19, in turn affecting life expectancy. The U.S. also had a higher COVID-19 mortality rate compared to its peers two years after the pandemic first struck.
Thus, American life expectancy may not improve immediately to 2019 levels, which can affect insurance premiums, pension benefits, and plans.
Where Does This Data Come From?
Source: Office of Social Security, U.S. Government.
Note: The life expectancy at a given age is the average remaining number of years expected prior to death for a person at that exact age, born on January 1, using the mortality rates for 2020 over the course of their remaining life.
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