Rhodiola rosea is a plant used for its health-giving properties.  The root is harvested from this low-growing perennial plant that grows throughout the northern hemisphere in high elevations in Asia, Europe, and North America, and is native to the Himalaya. Other common names given to this plant are Arctic Root and Golden Root.  The root has a rose-like fragrance and flavor, and is very astringent (drying) on the tongue.   References to this plant for its health benefits are found as early as 77 A.D.
Throughout Russia and Asia, Rhodiola has been traditionally used as a tonic herb that increases physical and mental stamina, performance, and strength.  It is considered an adaptogen, meaning it has the ability to help the body respond better to stress and is safe for long-term use.  It most likely acts on the Hypothalamus-Pituitary-Adrenal axis to normalize adrenal function, improve energy, and increase overall health.
Rhodiola seems to primarily effect the nervous system, the immune system, and the HPA axis (adrenals).  Most studies have focused on the physical and mental effects of Rhodiola.  It has been studied on athletes, showing an increase in performance for most people. In one study 89% of participants showed increased speed & strength.  Students are another category of people that have seen improvement when using this herb, improving memory, retention of information, and increasing attention span.
The primary reasons people take Rhodiola are to decrease stress, increase energy, enhance athletic and physical performance, combat fatigue – whether physical or mental, increase attention and focus, combat depression, and to increase immune system function.  Rhodiola also acts as an antioxidant, anti-cancer (in animals, shown to inhibit tumor growth and decrease metastasis), and radio-protective; most of these properties having been indicated in in vitro (lab) studies.  Therefore, it is often used as an adjunct in cancer treatment, for protecting the healthy cells from the effects of chemical and radiation exposure.
Rhodiola is also an herb commonly used to prevent and combat altitude sickness.
This herb can be made into an infusion (tea) and consumed, as it is in our Mental Clarity Tea: 1 Tbsp/cup hot water (just boiled) and steeped for 20 minutes. For the root alone, use 1 Tbsp/2 cups water for 20 minutes.  As a tincture (liquid extract), the dosing is typically 2 dropperfuls (50-60 drops) 2-3 times/day.  Capsules are generally taken at 2 twice/day.
If you find it a stimulating herb, as some people do, it is best to avoid later in the day (after 4 pm) to avoid insomnia.  It may be too stimulating for certain constitutions and should be used with caution in those with high blood pressure and avoided for those with bipolar disorder.

When I say the name of this tea, I have had most people respond “I could use some of that!”  Apparently, most of us could use a bit of mental focus and clarity of thought, and why not an improved memory to boot?  Well, I can’t promise or guarantee that this particular blend of herbs will do these things for you, but it can certainly help improve those parameters you’re looking to improve.
By increasing circulation throughout the body, but particularly to the head and brain, and improving energy in a sustainable way, this blend of herbs can help increase “mental clarity” over time, or perhaps immediately when you need a boost during a long or stressful day, or just need to “clear your head”.
Gotu kola is often used to improve mental function, which is does perhaps primarily by increasing circulation.  It also acts as an anti-inflammatory and helps with all types of connective tissue repair and function.  Ginkgo may be the most-recognized herb for memory and focus, and although results are mixed in studies, there is no doubt that it increases circulation and is a powerful antioxidant.  Rhodiola is an adaptogenic root that can help normalize body functions and is best known for increasing energy levels and helping improve recall and retention of information.  As an adaptogen, it somehow acts on the hypothalamus-pituitary-adrenal axis to balance the body and increase energy and mental function.  Rosemary is another potent antioxidant, cell protective, that increases circulation and is uplifting in its action.  Hawthorn leaf & flower helps improve cardiovascular function and circulation and is antioxidant.  You may notice a theme here.  Finally, peppermint and spearmint add their invigorating scent and taste to open the sinuses and clear the head to complement actions of the other herbs in this mix.
Contains: Gotu kola, ginkgo, rhodiola, rosemary, hawthorn leaf & flower, peppermint, & spearmint.

This has been a thought on many health-conscious people’s minds: how do I protect myself from this invisible, potentially toxic, radiation that is drifting our way via air and water from Japan as I write.  I think it is a question worth asking, even though there are those who scoff.  I especially think it’s important when prevention and acting “as if” in sensible ways could only provide health benefits. From what I can find, iodine-131 has a half-life of 8 days, the radioactive element that can most effect/damage the thyroid gland, but cesium-137 has a half-life of 30 years!  It also mixes easily with water and acts similarly to potassium in the body, and so is taken up and processed by the body similarly.  Cesium and uranium both have the most potential to negatively effect the kidneys.  Therefore, it appears that the thyroid gland and the kidneys are the most susceptible to nuclear radiation.
The problem with radiation  in general is that we don’t really know what damaging levels are, and our exposure has gone up as more radiation is continually being emitted around us, from electronics, cell phones, etc.  With the exposure to nuclear radiation through this current crisis,  we may not notice immediate health problems but could experience higher cancer rates years down the road.
How do we protect ourselves?  The reading that I’ve done now points to several things you can do right now, that are generally really good things for the body all the time.  Some of this is based on scientific studies that looked at mainly animals, but people as well, during and after radiation exposure, to nuclear radiation as well as radiation from cancer treatment, x-rays, etc.,  and some is based on information we know about how radiation is processed in the body.
Makes sense, right?  Radiation causes free radical damage and antioxidants can help reduce that damage.  Some antioxidants to consider: turmeric (or curcumin at 2-4 g/day, a compound extracted from turmeric, which has been shown to protect the body from breast cancer after radiation exposure), Ginkgo biloba (protective after radiation exposure), rosemary, beta carotene (from carrots, kale, tomatoes, blue-green algae, etc.), vitamin E, glutathione (a powerful antioxidant made up of the amino acids cysteine, glycine, and glutamine;  found in high amounts in barley and watercress, but otherwise is synthesized by taking the amino acids in supplement form or applying a glutathione cream), superoxide dismutase (SOD) (another powerful antioxidant that you can take in supplement form and is found in horseradish), selenium cysteine (found in high amounts in broccoli and garlic), and the brassica family plants (broccoli, kale, cabbage, brussel sprouts, etc.).
These wonderful fungi can help protect the body from radiation, probably partly because of a compound called beta-glucan, which is particularly protective to the bone marrow after radiation.  Mushrooms such as reishi, shiitake, and cordyceps are also immune supportive and have many anticancer/tumor properties.  How much do you need to take to be effective?  A typical dose would be 1-2 g twice/day of the powder, capsules, or tincture.  You can also incorporate some mushrooms (shiitake, maitake)  into your food.
Sodium bicarbonate (aka baking soda):
This substance appears to bind to both uranium and cesium and minimize their damaging effects on the kidneys, which have to excrete them.  One source I found suggested 1/2 tsp, twice/day away from food.
This powerful category of plants is protective and supportive to the body in general.  Particularly of note are Panax ginseng (Asian ginseng), Panax quinquefolius (American ginseng), RhodiolaEleutherococcus (Eleuthero), and Holy basil (Tulsi).

A therapeutic dose of these would be 2 dropperfuls (about 60 drops or 2 millileters) 2-3 times/day of the tincture (1:2 extract would provide 1 gram of herb per 2 ml of liquid ingested), 2-3 cups of tea at 1 Tbsp/cup simmered for 20-30 minutes for the roots and steeped 20 minutes for the leaves (holy basil), or 2 grams of the powder/capsules, twice/day.
Algae & Other Chlorophyll-rich greens:

Chlorella & Spirulina in particular are detoxifying to the body and known to carry radiation out the body, partly due to the chlorophyll content and due to carotenes and minerals in these superfoods.  Wheatgrass is also very high in chlorophyll and shown to help with radiation.
Iodine & Seaweed:
Iodine can compete with iodine-131 for use by the thyroid gland, therefore limiting radioactive exposure.  Although potassium iodide is recommended for high levels of radioactive iodine exposure, it is not recommended for long-term use.  Seaweed and other iodine-containing substances (fish, iodized salt) are better long-term sources.  Kelp, kombu, bladderwrack, and other “brown seaweeds” are considered the best for protecting the body.  They also are a source of trace minerals that are helpful for metabolic processes in the body and have antioxidant effects.  3-5 g/day is recommended, with 3 g amounting to about 1 tsp of kelp powder.
Vitamins & Minerals:
Vitamins E, D3, C, and A are all antioxidants and vitamin D3 has been shown to support immune function, so all of these are potentially helpful.  The minerals selenium, iodine, & magnesium are most cited for their potentially beneficial effects during this time.
What would a good approach be?
I’ll tell you what I’m doing.  I take a tincture (a liquid extract) combining several herbs, including Adaptogens & Antioxidants.  Mine includes adaptogens (American ginseng & Schisandra berry, which protects the liver) and antioxidants/liver support (Turmeric, Rosemary, & Ginkgo).  I take 60 drops (2 dropperfuls) twice/day.  I take 2 – 500 mg kelp capsules twice/day, so 2 grams/day.  I also take 1 Tablespoon of a green powder blend once/day that contains chlorella, spirulina, kelp, alfalfa, and nettle.  I take about 5000 IU vitamin D3 once/day.
It may sound like a lot, but it takes me 5 minutes out of my day to do.  I put 2 squirts of my herbal tinctures in a little water, 1 squirt of my liquid vitamin D3, &  toss it back with my kelp capsules with breakfast.  At some point during the day I shake up my green powder in about 4 oz of water in a jar and get it down as quickly as possible (you could alternatively take this in a smoothie or with juice).  I then take 2 more squirts of my tincture and 2 more kelp capsules with dinner.  And I’ve done my best at getting in some good nutrients for the day, including broccoli and kale.  I was, by the way, doing all of this except for the faithful taking of my kelp capsules, before I found out about the nuclear radiation from Japan.
My hope in sharing this information is to empower you with tools you can incorporate into your life to help protect you from the radiation we are going to be exposed to in some degree over the weeks/months to come.   It is better to act than to ignore this potential danger or to freeze in fear.  Please give feedback/insights and feel free to ask questions.