On June 9, 2020, Washington University scientists released a report on neurological experiments. Their research shows that the human brain rewires itself when changes occur in the body. Dr. Nico Dosenbach, professor of neurology, and his coworkers put their arms in casts. For seven weeks, they would lie absolutely still for a 30-minute MRI. The MRI scans showed that within two days, the group of neurons responsible for coordinating the movement of the casted arms effectively disconnected from the rest of the brain but increased their connections with each other.
Dr. Beatriz Lunda at the University of Pittsburgh said, “They found a neural signature for adult brain plasticity. It adds to our understanding that the brain is never doing nothing. It is always trying to optimize its performance.” This means the human brain rewires itself to compensate for the current disuse of a body part while keeping the pathways open to reactivate that part later.
The applications of this research are many and of great significance. Stroke victims, people who have casts on their arms or legs, and children with conditions that cause them to favor one side of the body, can all benefit from this research. The complete report will be published in the August 2020 edition of the professional journal Neuron, if you are interested in reading more about how the human brain rewires itself.
God’s design of our personal computer – the brain – is so complex that we are just beginning to understand how it works. Like any computer, the designing Engineer had to be a genius to make such a wondrous device. Thank you, God, for our brains and help us to take care of them.
Tattoos are nothing new. In 1991 tourists found a 5,300-year-old iceman mummy in the Italian Alps with 61 tattoos on his body. Recently archaeologists found tattoos on 5,000-year-old mummies in Egypt. Even though tattoos have been around for a long time, they have become very popular in the last few years. According to a Harris poll, currently, 21 percent of U.S. adults have at least one tattoo. The thing many people want to know is should Christians get tattoos?
There are disagreements among Christian teachers about tattoos. You can search the internet and find discussions on the topic, such as here and here. What does the Bible say? The passage that is often quoted is Leviticus 19:28. However, there is disagreement on exactly what it means. We don’t have room here to go into a lengthy theological discussion about whether or not tattoos are sinful. We will leave that to others. But there are some things we can say for certain about tattoos.
You may wonder why tattoos are so permanent when our skin cells, like other cells in our bodies, die and are replaced every few years. According to an article published on March 6 in the Journal of Experimental Medicine, the reason has to do with our immune system. When the needle punctures the skin, immune-response cells called macrophages rush to the site and gobble up the foreign substance. After capturing the ink, they hold it until they die. When they die a cellular recycling system kicks into action. New macrophages take up the ink and hold it until they die. The process continues keeping the ink as a permanent part of the cellular network. Tattoo removal requires laser pulsing the macrophage cells that hold the ink coaxing them to release it into the lymph system of the body. This removal process can take years.
It is also safe to say that tattoos can cause serious adverse reactions. These can be short-term problems such as infections. They can be long-term problems including redness, swelling, and itching. In a random sampling of tattooed people in New York City, ten percent said they had some complications. Of that ten percent, sixty percent had chronic problems. Sometimes people develop allergies to the inks used, and sometimes that happens only after they get a second tattoo. The treatment for tattoo allergies may involve topical or injected steroids or surgical removal. Tattoo inks are not closely regulated, if at all. Unsanitary tattoo parlors or a tattoo artist who doesn’t use proper precautions can cause infections. Bacterial infections are the most common, but fungal or viral infections are possible. Tattoos can result in blood-borne diseases such as hepatitis B and C.
Another potential problem of tattoos is that they can hide health problems such as skin cancers of all kinds including melanoma. With skin cancer, as with any cancer, early detection is essential and even a dermatologist may not see early evidence if it is hidden by a tattoo. Tattoos can also increase your risk of the effects of Sun exposure. Yellow ink, which contains cadmium, is known to cause itching and redness when exposed to the Sun. Black or dark ink colors can absorb the Sun’s rays and cause overheating. Because black ink contains iron, it can also create problems if you have an MRI (magnetic resonance imaging). Black ink contains iron, and the magnetic field can generate electric currents in the iron. That can cause burning, and the more black ink, the more danger in an MRI.
But should Christians get tattoos? For a Christian, there are more things to consider before getting a tattoo. Why do you want one? Is it to glorify God, or is it to draw attention to yourself? Is it an act of rebellion? How will friends and family react? Will it be a stumbling block for other Christians? Will this tattoo be appropriate for me 30, 40, or 50 years from now? Will it make it hard for me to get a job? (Many employers do not want their employees to have visible tattoos.) Is this the best stewardship of money which could be used to spread the gospel or help others in need? (Tattoos are expensive, but removal is much more expensive and painful.) What does the tattoo say about me? Does it convey the kind of message I want to present as a Christian?
Tomography is a way of imaging something in sections or “slices” without actually cutting it. It is often used in hospitals today in computed tomography (CT), also called “CAT scans.” Our most basic theme in this ministry is that science and faith support each other one-hundred percent. This scientific technique of tomography is going to provide a way of verifying biblical documents as never before. Dr. Brent Seales is using CT to “open” documents that could not previously be opened.
In 1970 a scroll was discovered at in an ancient synagogue in En-Gedi, Israel. The document was badly damaged when a fire destroyed the synagogue in the sixth century. The scroll was a lump so charred that it would crumble when touched. When Seales applied his analysis technique to the scroll without unrolling it or touching it in any way, it turned out to be two chapters from the book of Leviticus.